这题怎么算谢谢了🙏
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√(x^2-256) +√(x^2-64) =32
√(x^2-256) =32 -√(x^2-64)
x^2-256 =[32 -√(x^2-64)]^2
x^2-256 =1024-64.√(x^2-64) +(x^2-64)
64√(x^2-64) =1216
√(x^2-64) =19
x^2-64 =361
x^2=425
x=5√17 or -5√17
√(x^2-256) =32 -√(x^2-64)
x^2-256 =[32 -√(x^2-64)]^2
x^2-256 =1024-64.√(x^2-64) +(x^2-64)
64√(x^2-64) =1216
√(x^2-64) =19
x^2-64 =361
x^2=425
x=5√17 or -5√17
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√(x^2-256) +√(x^2-64) =32
√(x^2-256) =32 -√(x^2-64)
x^2-256 =[32 -√(x^2-64)]^2
x^2-256 =1024-64.√(x^2-64) +(x^2-64)
64√(x^2-64) =1216
√(x^2-64) =19
x^2-64 =361
x^2=425
x=5√17 or -5√17
√(x^2-256) =32 -√(x^2-64)
x^2-256 =[32 -√(x^2-64)]^2
x^2-256 =1024-64.√(x^2-64) +(x^2-64)
64√(x^2-64) =1216
√(x^2-64) =19
x^2-64 =361
x^2=425
x=5√17 or -5√17
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