3.3 多项式的乘法(2)(a+b)(a²-b²) (x-y)(xy-1)(2x-1)(4x²+2x+1) (x-1)(x²+x)

问题描述:

3.3 多项式的乘法(2)
(a+b)(a²-b²) (x-y)(xy-1)
(2x-1)(4x²+2x+1) (x-1)(x²+x)