因式分解:-4x^2y^2+4xy+2
人气:143 ℃ 时间:2020-03-28 12:59:24
解答
-4x^2y^2+4xy+2
=-(4x^2y^2-4xy+1)+3
=3-(2xy-1)^2
=(根号3+2xy-1)(根号3-2xy+1)
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