Question

(xy-x的平方）的三次方-x的三次方(y-x)

Answer 1

(xy - x^2)^3 - x^3 (y-x)= x^3 * (y -x)^3 - x^3 (y-x)= x^3 * [(y - x)^3 - (y -x)]= x^3 * (y -x) * [(y -x)^2 - 1]= x^3 * (y -x) * (y - x +1) * (y - x - 1)

Answer 2

(xy-x的平方）的三次方-x的三次方(y-x)
=[x(y-x)]�0�6-x�0�6(y-x)
=x�0�6(y-x)�0�6-x�0�6(y-x)
=x�0�6(y-x)[(y-x)�0�5-1]
=x�0�6(y-x)(x�0�5-2xy+y�0�5-1)