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Mathematics 7 Online
OpenStudy (anonymous):

is this one right then? problen: (x^2-2y)(x^2+2y) my answer is: x^4-4y^2

OpenStudy (kropot72):

Yes. Your answer is correct :)

OpenStudy (anonymous):

i got 1 out of 3 thank you i ambeginning i think to understand these... appreciate your help

OpenStudy (kropot72):

Good work. Keep up the practice :)

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