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January 30, 2015

January 30, 2015

Posted by **Elizabeth** on Thursday, August 23, 2012 at 1:35pm.

- math -
**Steve**, Thursday, August 23, 2012 at 4:27pmyes.

The two expressions are equivalent, since m+m = 2m

That said, I'd interpret

"product of 9 and twice m" as 9(2m)

and

"product of 9 and the sum of m and m" as 9(m+m)

That would leave open the possibility of something like

"product of 9 and the sum of m and k" as 9(m+k)

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