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数学
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化简:
4
x
2
−4x+1
−(
2x−3
)
2
=______.
人气:107 ℃ 时间:2020-05-19 11:21:48
解答
从题意可知2x-3>0,那么2x-1>0,
原式=
(2x−1)
2
-(2x-3),
=2x-1-2x+3,
=2.
故答案为:2.
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