turtlenuts1239 turtlenuts1239

04-03-2015
Mathematics

contestada

what is the answer to (x-2)(x+2)

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Panoyin Panoyin

04-03-2015

(x - 2)(x + 2)
(x² + 2x - 2x - 4)
x² - 4

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leecongour leecongour

04-03-2015

Using FOIL (First, Inside, Out, Last), you have to multiply. First: multiply x and x Outside: Multiply x and +2 Inside: Multiply -2 and x Last: Multiply -2 and +2. Finally, add it all together, and you will get x^2-4

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