Question

计算(a的平方-2ab+b的平方)的立方除以(a-b)的五次方

Answer 1

(a^2-2ab+b^2)^3÷(a-b)^5

=[(a-b)^2]^3÷(a-b)^5

=(a-b)^6÷(a-b)^5

=(a-b)^(6-5)

=a-