-6x的2次方y*(-a-b)的3次方*1/3xy的2次方*（b+a)的2次方*为乘号,

Question

-6x的2次方y*(-a-b)的3次方*1/3xy的2次方*（b+a)的2次方 *为乘号,

Answer 1

-6x^2y*(-a-b)^3*(1/3)x^2y^2*(b+a)^2
=-6x^2y*[-(a+b)^3](a+b)^2*(1/3)x^2y^2
=6x^2y*(1/3)x^2y^2*(a+b)^5
=2x^4y^3*(a+b)^5