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OpenStudy (anonymous):
Factor the Polynomial x^2-400
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OpenStudy (oaktree):
Is 400 a square number?
OpenStudy (oaktree):
blondie4life, is 400 a square number?
OpenStudy (oaktree):
Well, it is. It is 20 squared. So this is a difference of two squares, meaning that the answer simplified is (x+20)(x-20).
OpenStudy (anonymous):
no it isn't.
OpenStudy (anonymous):
wait nevermind.
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OpenStudy (anonymous):
do you divide or something? How'd you get that answer?
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