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因式分解15(x-1)^2+11(x+3)-58
人气:216 ℃ 时间:2020-09-26 13:08:12
解答
15(x-1)^2+11(x+3)-58
=15(x-1)^2+11(x-1)-14
=[3(x-1)-2][5(x-1)+7]
=(3x-5)(5x+2)
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