1题:已知实数x,y满足丨x-√y丨+ √x3-27 = 0 ,求(y-5)的x次方的值.2题:(x+√2)² =3
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![1题:已知实数x,y满足丨x-√y丨+ √x3-27 = 0 ,求(y-5)的x次方的值.2题:(x+√2)² =3](/uploads/image/z/997092-36-2.jpg?t=1%E9%A2%98%EF%BC%9A%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3%E4%B8%A8x-%E2%88%9Ay%E4%B8%A8%2B+%E2%88%9Ax3-27+%3D+0+%2C%E6%B1%82%28y-5%29%E7%9A%84x%E6%AC%A1%E6%96%B9%E7%9A%84%E5%80%BC.2%E9%A2%98%EF%BC%9A%EF%BC%88x%2B%E2%88%9A2%EF%BC%89%26%23178%3B+%EF%BC%9D3)
1题:已知实数x,y满足丨x-√y丨+ √x3-27 = 0 ,求(y-5)的x次方的值.2题:(x+√2)² =3
1题:已知实数x,y满足丨x-√y丨+ √x3-27 = 0 ,求(y-5)的x次方的值.2题:(x+√2)² =3
1题:已知实数x,y满足丨x-√y丨+ √x3-27 = 0 ,求(y-5)的x次方的值.2题:(x+√2)² =3
丨x-√y丨+ √x^3-27 = 0
丨x-√y丨=0,√x^3-27 = 0
x=3
丨x-√y丨=0
丨3-√y丨=0
y=9
(y-5)的x次方
=(9-5)的3次方
=4的3次方
=64
(x+√2)² =3
(x+√2)² -3=0
(x+√2 -√3)(x+√2 +√3)=0
x=-√2+√3或x=-√2-√3
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