Question

初中数学题 平方差公式 ! 急！有分！

计算：

(a-b)(a²-b²)(a的四次方+b的四次方)(a+b)

Answer 1

原式=(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

Answer 2

原式=(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

Answer 3

给原式乘以（a+b)

Answer 4

(a-b)(a²-b²)(a4+b4)(a+b)
=(a-b)(a+b)(a²-b²)(a4+b4)
=(a²-b²)(a²-b²)(a4+b4)
=(a4-2a²b²+b4)(a4+b4)
= a8+a4b4-2a6 b²-2a²b6+a4b4+b8
=a8+2a4b4-2a6 b²-2a²b6+b8