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How To: Simplify algebraic expressions involving exponents

Need help figuring out how to simplify algebraic expressions? Learn how with this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).

How To: Find the derivative of an inverse function in calculus

Looking for a primer on how to find the derivative of an inverse function in calculus? Learn how with this free video calc lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).

How To: Find the domain of a function in precalculus

Looking for a primer on how to find the domain of a function in precalculus? Learn how with this free video precalc lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).

How To: Identify an exponential model

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to identify and work with exponential models.

How To: Work with linear, quadratic & exponential models

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with linear, quadratic and exponential models.

How To: Use the NORMSINV & NORMSDIST in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 93rd installment in his "Excel Statistics" series of free video lessons, you'll learn how to use the NORMSINV and NORMSDIST functions to complete a hypothesis test about a population proportion.

How To: Find the volume of a cylinder

Need help calculating the volume of a cylinder? It's easy! So easy, in fact, that a complete and thorough overview of the process can be presented in forty-five seconds' time. Study for your next geometry test or just finish your homework with this free video math lesson, which demonstrates how to find the volume of a cylinder using v=pr^2h.

How To: Work with radical equations in algebra

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with radical algebraic equations.

How To: Simplify radical expressions in algebra

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to reduce and simpify rational expressions in algebra.

How To: Find the midpoint of a line segment in geometry

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find the midpoint of a line segment in geometry.

How To: Graph linear equations using a table

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this free video math lesson, you'll learn how to graph a system of linear equations using a T-Chart.

How To: Use a multimeter to test common household appliances

If you're doing any sort of electrical work at home, a multimeter is an invaluable tool to have. But as invaluable as it is to have a volt/ohm meter, it is obviously even more invaluable still to know how to use one. And, with this electrician's how-to, you'll learn how to do just that. For more information, and to get started using and reading multimeters yourself, watch this free video guide.

How To: Update your iPod Touch to the 3.0 firmware

1.First download correct firmware for the iPhone or iPod Touch. And change the dot extension of the file before that open the explorer and select Tools menu then go to Folder options, open view tab and deselect "Hide extension for known file types" option and click ok.2.Now right click on the file and click rename and change the extension as ".ipsw". Now open the iTunes and make sure the iPhone is connected with the data cable to the system. Now press down the home and power button of the iPh...

How To: Use the quadratic formula on a graphing calculator

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with the quadratic formula on your graphing calculator.

How To: Rationalize a denominator

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to rationalize a denominator.

How To: Solve a complicated radical equation in algebra

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve a complex radical equation in algebra.

How To: Find & recognize pine resin

In this how-to video, you will learn how to find pine resin on your trees. This is very difficult to find at first, but with the right knowledge, it can be very easy. First, look closely into the tree's bark. Look for an area where there was once a branch. In the center, there will be a material there. This material should be the pine resin. You can dig it out without damaging the tree with a sharp stick or knife. This is how the tree protects itself from damage. It produces pine resin to fil...

How To: Format your PC external hard drive to work with a Mac

Thinking of switching to a Mac using an external hard disk, you'll need to format it so that the Mac can recognize it. In your Mac, go to finder, then applications. Scroll down to where it says disk utility and then select it. Here select your hard disk and press the partition button in the screen that comes up. Make two partitions and rename them to whatever you want. After that change the format of the partition to Mac OS extended. Now just press the apply button to apply the changes, be su...

How To: Get a woman to feel chemistry with you

David Wygant discusses how to get a woman to feel chemistry with you. First, realize that no one can create chemistry and to have something really special with someone, you need to have chemistry. Everyone is attracted to different kinds of people. Chemistry and attraction is a numbers game. You can create your odds by creating energy with people. Observe women, listen to what they have to say and converse with them accordingly. These techniques may unlock a woman's attraction for you. Howeve...

How To: Use the Simple Trinomial factoring method

In this video, you will learn how to factor a simple trinomial. You will learn how to recognize a simple trinomial, and how to completely factor the trinomial. Also, it shows you how to factor square variables. The last example in the video explains how to factor out a negative first term. You can't just drop the negative and forget it is there. The instructor teaches you how to remove this negative, then reminds you not to forget to put the negative into your final answer.

How To: Calculate the area of a trapezoid

Finding the area of a trapezoid is essential to high school and college mathematics. In this tutorial, learn how to find the area fast and easily. You will be aceing math tests in no time with this simple guide designed especially for students.

How To: Solve a Rubik's Cube with the "Ortega method"

Want to learn how to solve the mysterious Rubik's Cube? Well in this video, the viewers will be taught how to do so with the "Ortega method". The video provides a demonstration of this method with a 2x2x2 Rubik's Cube. At each step, the video breaks down the cube into different situations and which algorithm to use for which. The video demonstrates how to recognize each situation, what to do in each case and the fastest way to do so.

How To: Maintain a swimming pool with Lowe's

Lowe's home improvement expert Mike Craft gives the low down on how to maintain your swimming pool. Pool maintenance is essential for keeping your pool like new and in tip-top condition. You will need some basic materials such as water test strips, chlorine tablets, algae-cide, water shock, a skimmer brush, pool net and vacuum. This video will show you how to balance your water, shock the water, clean out the filters and sweep and vacuum out your pool.

How To: Do the push away when bowling

Team USA's Lynda Barnes demonstrates the push away. Pick up some bowling tips and tricks to improve your game, whether you are a beginner or a competitive bowler in a bowling league. Learn how to do the push away with this bowling video.

How To: Use the six step approach when bowling

The timing of a young power player - Team USA's Derek Eoff - is examined. Pick up some bowling tips and tricks to improve your game, whether you are a beginner or a competitive bowler in a bowling league. Learn how to use the six step approach with this bowling video.