4(2x²-3x+1)-2(4x²-2x+3)=

问题描述:

4(2x²-3x+1)-2(4x²-2x+3)=

4(2x²-3x+1)-2(4x²-2x+3)=-8x-2要过程4(2x²-3x+1)-2(4x²-2x+3)=8x²-12x+4-8x²+4x-6=-8x-2