求满足下列各式的X的值:(1)X²=25;(2)X²-81=0 (3)25X²=36
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![求满足下列各式的X的值:(1)X²=25;(2)X²-81=0 (3)25X²=36](/uploads/image/z/587702-38-2.jpg?t=%E6%B1%82%E6%BB%A1%E8%B6%B3%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%E7%9A%84X%E7%9A%84%E5%80%BC%EF%BC%9A%EF%BC%881%EF%BC%89X%26%23178%3B%3D25%EF%BC%9B%EF%BC%882%EF%BC%89X%26%23178%3B-81%3D0+%283%2925X%26%23178%3B%3D36)
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求满足下列各式的X的值:(1)X²=25;(2)X²-81=0 (3)25X²=36
求满足下列各式的X的值:(1)X²=25;(2)X²-81=0 (3)25X²=36
求满足下列各式的X的值:(1)X²=25;(2)X²-81=0 (3)25X²=36
5与-5
9与-9
1.2或-1.2