2(x-3)^2=18

问题描述:

2(x-3)^2=18


原方程化为(x-3)^2=9
所以x-3=3或x-3=-3
解得x=6或0

(x-3)²=9
x-3=±3
x=3±3
x=6或0

2(x-3)^2=18
(x-3)^2=9
(x-3)=±3
则x=6或0

(x-3)²=9
x-3=±3
x=6或者x=0