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)
((bx+by)+(2x+2y))/(4-b²)=(b(x+у)+2(x+y)/(4-b²)=((b+2)(x+у))/((2-b)*(2+b))=
(x+у)/((2-b)
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)
((bx+by)+(2x+2y))/(4-b²)=(b(x+у)+2(x+y)/(4-b²)=((b+2)(x+у))/((2-b)*(2+b))=
(x+у)/((2-b)