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Mathematics 24 Online
OpenStudy (anonymous):

CAN (-X –Y) (X+Y) be multiplied by using the difference-of-squares formula? Explain why or why NOT?

OpenStudy (anonymous):

factor out a -1 from (-X –Y)

OpenStudy (anonymous):

what do you get?

OpenStudy (luigi0210):

no, because that's not (a-b)(a+b)

OpenStudy (anonymous):

difference of squares formula is (x –y) (x+y)

OpenStudy (luigi0210):

Je ne sais pas..

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