From Ramanujan to calculus cocreator 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.
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How To: Remember "greater than" & "less than" symbols

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Find the discriminant (DELTA): quadratic equation

How To: Remember "greater than" & "less than" symbols

How To: Find the Percent Given Two Numbers

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find a number given Its percent

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Calculate Faster Than a Calculator

How To: Calculate percent composition for chemistry

How To: Factor perfect square polynomials

How To: Find the area of a parallelogram using geometry

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle

How To: Convert Fahrenheit to Celsius with a formula

How To: Convert between diameter and radius

How To: Find the slope of a line given 2 points with fractions

How To: Calculate the height and volume of a pyramid

How To: Find the area of a triangle when given 2 sides & angle

How To: Find a missing coordinate given: coordinate & equation

How To: Derive the area of a circle

How To: Normalize a data set into another scale

Find the discriminant (DELTA): quadratic equation
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