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Guimaraesjhenifer9go
Respondido

c) (7x-4y+2)-(2x-2y+5)=
d) (x2+2xy+y2)-(y2+x2+2xy​

Resposta :

Pedrodaniel0816go

C) (7-4+2) (X + Y) - (2-2+5) (X + Y) = 5XY - 5XY = 0

D) (2+2+2) (X+XY+Y) - (2+2+2) (Y+X+XY) = 6X²Y² - 6X²Y² = 0

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