(2x^3-x +6)乘以(3x^2+ 5x-2)=?、、、用竖式计算?
问题描述:
(2x^3-x +6)乘以(3x^2+ 5x-2)=?、、、用竖式计算?
答
(2x^3-x +6)乘以(3x^2+ 5x-2)
=6x^5+10x^4-4x^3-3x^3-5x^2+2x+18x^2+30x-12
=6x^5+10x^4-7x^3+13x^2+32x-12