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(3a²b-6ab²)÷(a-2b)
人气:383 ℃ 时间:2020-01-29 03:25:36
解答
(3a²b-6ab²)÷(a-2b)
= 3ab( a-2b) / (a-2b)
= 3ab
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(3a-2b²)/((a+2b)(3a-b))=?
3a²-ab+6ab-2b²=?
已知A=3a²-6ab+b²,B=-a²-5ab-7b²,其中a=-1,b=1,求:-3A+2B的值.
(1+ 2b²/a²-b²)÷(1+ 2b/a-b),其中3a+2b=0
计算:(1)(-2x)³·(7x²y) (2)(3a²b-6ab²)÷(a-2b)
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