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 work with radical equations containing invalid or "extraneous" solutions.
 Hot
 Latest

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

How To: Find extra points for a parabola (quadractic equation)

How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Write a slopeintercept equation given an XY table

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

How To: Calculate percent composition for chemistry

How To: Find the Slope Given 2 Ordered Pairs

How To: Find the Percent Given Two Numbers

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

How To: Calculate the height and volume of a pyramid

How To: Find the equation of a line given 1 point

How To: Evaluate combinations of functions from graphs

How To: Prove Rank(A) = Rank(transpose of A) in linear algebra

How To: Use a protractor to measure an angle

How To: Solve quadratic equations by factoring using grouping

How To: Calculate Faster Than a Calculator

How To: Find a slope of a straight line with: Ax + By + C = 0

How To: Divide small numbers by big numbers

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

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

How To: Find extra points for a parabola (quadractic equation)

How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Write a slopeintercept equation given an XY table

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

How To: Calculate percent composition for chemistry

How To: Find the Slope Given 2 Ordered Pairs

How To: Find the Percent Given Two Numbers

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

How To: Calculate the height and volume of a pyramid

How To: Find the equation of a line given 1 point

How To: Evaluate combinations of functions from graphs

How To: Prove Rank(A) = Rank(transpose of A) in linear algebra

How To: Use a protractor to measure an angle

How To: Solve quadratic equations by factoring using grouping

How To: Calculate Faster Than a Calculator

How To: Find a slope of a straight line with: Ax + By + C = 0

How To: Divide small numbers by big numbers

How To: Find the area & perimeter of triangles & squares
Be the First to Comment
Share Your Thoughts