约分:(xy-2y)/(x²-4x+4)
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约分:(xy-2y)/(x²-4x+4)约分:(xy-2y)/(x²-4x+4)约分:(xy-2y)/(x²-4x+4)(xy-2y)/(x²-4x+4)=y(
约分:(xy-2y)/(x²-4x+4)
约分:(xy-2y)/(x²-4x+4)
约分:(xy-2y)/(x²-4x+4)
(xy-2y)/(x²-4x+4)
=y(x-2)/(x-2)²
=y/(x-2)
原式=y(x-2)/(x-2)²=y/(x-2)
=y(x-2)/(x-2)²=y/x-2
我第一个回答的,选我啊!
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