问题描述: 用分解因式法解方程①4x(2-x)=3(2-x)②3(x-1)x=2-2x③4(x+1)^2=9(2x-1)^2④(x-1)^2=1-x^2 1个回答 分类:数学 2014-12-14 问题解答: 我来补答 ①4x(2-x)=3(2-x)(4x-3)(2-x)=0x1=3/4 x2=2②3(x-1)x=2-2x3(x-1)x=2(1-x)(x-1)(3x+2)=0x1=1 x2=-2/3③4(x+1)^2=9(2x-1)^2[2(x+1)-3(2x-1)][2(x+1)+3(2x-1)]=0(-4x+5)(8x-1)=0x1=5/4 x2=1/8④(x-1)^2=1-x^2(x-1)^2=(1+x)(1-x)(x-1)^2+(1+x)(x-1)=0(x-1)(x-1+1+x)=02x(x-1)=0x1=0 x2=1 展开全文阅读