解x²-3x-1=-3
问题描述:
解x²-3x-1=-3
答
x^2-3x+2=0
(x-1)(x-2)=0
x=1或x=2
答
x²-3x-1=-3
x²-3x+2=0
(x-1)(x-2)=0
x1=1 x2=2
答
x²-3x+2=0
(x-1)(x-2)=0
x=1或2