Question

разложите на множители 4 x^{2}-4y^{2}-x+y

Answer 1

a^2-b^2=(a-b)(a+b)

4 x^{2}-4y^{2}-x+y = (2x-2y)(2x+2y)-(x-y)=4(x-y)(x+y)-(x-y)=(x-y)(4x+4y-1)

Answer 2

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Answer 3

спасибо

Answer 4

4х²-4у²-х+у=(2х)²-(2у)²-х+у=(2х-2у)(2х+2у)-(х-у)=2(х-у)(2х+2у)-(х-у)=(х-у)(4х+4у-1)