(2x-2)(x²+3x-1)怎样计算
问题描述:
(2x-2)(x²+3x-1)怎样计算
答
=2x³+6x²-2x-2x²-6x+2
=2x³+4x²-8x+2
(2x-2)(x²+3x-1)怎样计算
=2x³+6x²-2x-2x²-6x+2
=2x³+4x²-8x+2