(x-2)平方=36?

2016-08-29 3:35 am

回答 (4)

2016-08-29 4:17 am
Sol
(x-2)^2=36
x-2=6 or x-2=-6
x=8 or x=-4
2016-11-12 4:32 am
(x-2)平方=36
x-2=6 or x-2=-6
x=8 or x=-4
2016-09-14 5:12 pm
(x-2)^2=36
(x^2)-4x+4=36
(x^2)-4x-32=0
(x-8)(x+4)=0
∴x=8 or x=-4
2016-09-08 3:47 am
8


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