来自倪重匡的问题
(1)用配方法解一元二次方程:3x2-6x-1=0;(2)化简(1+1x−1)÷xx2−1(3)x2−2x+1+8(x+1)x2−2+6=0(4)2x2-7x+3=0.
(1)用配方法解一元二次方程:3x2-6x-1=0;
(2)化简(1+1x−1)÷xx2−1
(3)x2−2x+1+8(x+1)x2−2+6=0
(4)2x2-7x+3=0.
1回答
2020-05-06 22:28