Ответ:
Объяснение:
bx+by+2x+2y/4-b^2=
=[b(x+y)+2(x+y)]/[2-b)(2+b)]=[(x+y)(b+2)]/[2-b)(2+b)]=(x+y)/(2-b)
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Ответ:
Объяснение:
bx+by+2x+2y/4-b^2=
=[b(x+y)+2(x+y)]/[2-b)(2+b)]=[(x+y)(b+2)]/[2-b)(2+b)]=(x+y)/(2-b)