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4x²-3y(4x-3y) 2(x²-y²)+y-x 跪求,因式分解,详细点,要过程
人气:244 ℃ 时间:2019-12-22 21:29:04
解答
4x²-3y(4x-3y)
=4x²-12xy+9y²
=(2x-3y)²
2(x²-y²)+y-x
=2(x+y)(x-y)-(x-y)
=(x-y)(2x+2y-1)
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