Question

Разложите на множители: 1) x(a-b)+y(b-a) 2) 2m(x-y)-y+x 3) m^2 (a-2)+n(2-a) 4) 2n(x-y)-(y-x)

Answer 1

1)(x-y)(a-b)
2)(2m+1)(x-y)
3)(m^2-n)(a-2)
4)(2n+1 )(x-y)