用因式分解法解方程x2-2x-35=0

问题描述:

用因式分解法解方程x2-2x-35=0

x2-2x-35=0
(x-7)(x+5)=0
x1=7 x2=-5

x^2-2x-35=0
(x-7)(x+5)=0
x1=7 x2=-5