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Mathematics 7 Online
OpenStudy (anonymous):

may i ask if my answers are correct? (m+n)^2-4p^2 =(mn)^2-(2p)^2 (mn+2p)(mn-2p) 16x^2(4x+5)^2 = 8x^2(2x+5)(2x-5) 9x^2-1/4 = (3x)^2-(1/2)^2 (3x+1/2) (3x-1/2)

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