(2x^1/2+3y-1/4)(2x^1/2-3y-1/4)怎么算用平方和公式,
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![(2x^1/2+3y-1/4)(2x^1/2-3y-1/4)怎么算用平方和公式,](/uploads/image/z/4321858-58-8.jpg?t=%282x%5E1%2F2%2B3y-1%2F4%29%282x%5E1%2F2-3y-1%2F4%29%E6%80%8E%E4%B9%88%E7%AE%97%E7%94%A8%E5%B9%B3%E6%96%B9%E5%92%8C%E5%85%AC%E5%BC%8F%2C)
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(2x^1/2+3y-1/4)(2x^1/2-3y-1/4)怎么算用平方和公式,
(2x^1/2+3y-1/4)(2x^1/2-3y-1/4)怎么算
用平方和公式,
(2x^1/2+3y-1/4)(2x^1/2-3y-1/4)怎么算用平方和公式,
(2x^1/2+3y-1/4)(2x^1/2-3y-1/4)
=[2x^(1/2)]² -[3y^(-1/4)]²
=4x - 9y^(-1/2)