分式因解数学题3X(a
3X(a-b)-6y(b-a)可以帮我详细的写出解的步骤吗?谢谢!
3x(a-b)-6y(b-a) =3ax-3bx-6by+6ay =3a(x+2y)-3b(x+2y) =(x+2y)(3a-3b) =3(a-b)(x+2y)