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 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 solve quadratic equations by completing the square in intermediate algebra.
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How To: Find the area of a triangle when given 2 sides & angle

How To: Calculate math without a calculator

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

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Do long division without a calculator

How To: Calculate the area of a parallelogram

How To: Divide small numbers by big numbers

How To: Find a number given Its percent

How To: Find the area of a parallelogram using geometry

How To: Convert between diameter and radius

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

How To: Find a missing side of a triangle, similar to another

How To: Convert Fahrenheit to Celsius with a formula

How To: Calculate percent composition for chemistry

How To: Find the area & perimeter of triangles & squares

How To: Cancel out in basic algebra

How To: Simplify a complex fraction w/ binomial denominators

How To: Add ounces and pounds together in basic mathematics

How To: Determine the age of a fossil using carbon14

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

How To: Calculate math without a calculator
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