2(x-1)∧2+(x-1)=0是怎么变成(x-1)(2x-1)=0(麻烦解释的详细点)
问题描述:
2(x-1)∧2+(x-1)=0是怎么变成(x-1)(2x-1)=0(麻烦解释的详细点)
答
2(X-1)^2+(X-1)=2x^2-3x+1=0,再用十字相乘法
2(x-1)∧2+(x-1)=0是怎么变成(x-1)(2x-1)=0(麻烦解释的详细点)
2(X-1)^2+(X-1)=2x^2-3x+1=0,再用十字相乘法