10+(6x-8x2+2)-2(5x2+3x)等于多少
问题描述:
10+(6x-8x2+2)-2(5x2+3x)等于多少
答
=10+6x-8x+2-10x-6x =(-8x-10x)+(6x-6x)+(10+2) =-18x+12
10+(6x-8x2+2)-2(5x2+3x)等于多少
=10+6x-8x+2-10x-6x =(-8x-10x)+(6x-6x)+(10+2) =-18x+12