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因式分解,(x²-5)²-16x²
人气:130 ℃ 时间:2020-04-04 18:09:40
解答
(x²-5)²-16x²
=[(x^2-5)+4x][(x^2-5)-4x]
=(x^2+4x-5)(x^2-4x-5)
=(x+5)(x-1)(x-5)(x+1)
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