簡化公式: 唔係好識計?
回答 (2)
2017-03-08 1:56 pm
(5b)/(4ab^2) -2/(2ab)
=(5b)/(4ab^2) -(4b)/(4ab^2)
=b/(4ab^2)
=1/(4ab)
=(5b)/(4ab^2) -(4b)/(4ab^2)
=b/(4ab^2)
=1/(4ab)
2017-03-07 6:58 am
Sol
b<>0
5b/(4ab^2)－2/(2ab)
=5/(4ab)－1/(ab)
=5/(4ab)－4/(4ab)
=(5－4)/(4ab)
=1/(4ab)
b<>0
5b/(4ab^2)－2/(2ab)
=5/(4ab)－1/(ab)
=5/(4ab)－4/(4ab)
=(5－4)/(4ab)
=1/(4ab)
收錄日期: 2021-04-18 16:08:37
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