8-x）^2=x^2+16怎么解

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8-x）^2=x^2+16怎么解
8-x）^2=x^2+16怎么解

8-x）^2=x^2+16怎么解
(8-x）^2=x^2+16
64-16x+x^2=x^2+16
64-16x=16
16x=64-16
16x=48
x=48/16
x=3

(8-x）^2=x^2+16
x^2-16x+64=x^2+16
16x=64-16
16x=48
x=3

原式化为：64-16x+x^2=x^2+16 移项得：16x=48 故X=3