Question

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

2(x-y)-a(x-y)=

(m+1)-m(m+1)=

7(x+y)-a(x+y)=

$x(y-z)^{2}+(z-y)^{2}=$

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

4(m+n)+(m+n)=

2a(b-3)-5c(3-b)=

Answer 1

$2(a-b)+a(a-b)=(a-b)(2+a)=2a+a^2-2b+b^2\2(x-y)-a(x-y)=(x-y)(2-a)=2x-ax-2y+ay\(m+1)-m(m+1)=(m+1)(1-m)=m-m^2+1-m=-m^2+1\7(x+y)-a(x+y)=(x+y)(7-a)=7x-ax+7y-ay\2(a-b)+c(b-a)=(a-b)(2-c)=2a-ac-2b+cb\4(m+n)+(m+n)=5(m+n)=5m+5n\2a(b-3)-5c(3-b)=(b-3)(2a+5c)=2ab+5bc-6a-15c$