Best Answer

Factor them.

2 x 2 x a = 4a

2 x 5 x a x a = 10a2

Combine the factors, eliminating duplicates.

2 x 2 x 5 x a x a = 20a2, the LCM

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โˆ™ 2012-02-27 20:14:34
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Q: How do you get the answer for finding the LCM of 4a and 10a2?
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