Question

1) x+y-x^2-xy=
2) 4ab^2+4ab+a+ab=
Разложите на множители

Answer 1

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

4ab^{2}+4ab+a+ab=4ab(b+1)+a(b+1)=(4ab+a)(b+1)