Can someone tell me if i have factorized correctly: Equation is this: First i completed the square: Now i use the difference of two squares where Therefore answer is: P.S
Last edited by Paymemoney; December 4th 2009 at 12:11 AM.
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Use the \sqrt{number} command to make a square root
Originally Posted by Bacterius Use the \sqrt{number} command to make a square root oh ok
i got this
Originally Posted by Paymemoney Can someone tell me if i have factorized correctly: Equation is this: First i completed the square: Now i use the difference of two squares where Therefore answer is: P.S I'd use a dummy variable to turn it into a quadratic. So Now remembering that . You could now use the difference of two squares again. . Ugly, yes, but fully factorised, yes.
^ i understand the first part, however i don't understand why is square rooted?
Originally Posted by Paymemoney ^ i understand the first part, however i don't understand why is is square rooted? Because and . We had to do this to create another difference of two squares.
Originally Posted by Prove It Because and . We had to do this to create another difference of two squares. ok thanks
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