Question

(a-b)(a²+b²)(a^4+b^4)(a+b) 用平方差公式怎么做

Answer 1

(a-b)(a²+b²)(a^4+b^4)(a+b)

=(a-b)(a+b)(a²+b²)(a^4+b^4)

=(a²-b²)(a²+b²)(a^4+b^4)

=(a^4-b^4)(a^4+b^4)

=a^8-b^8