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2(2x x y)

 May 23, 2016
 #1
avatar+118703 
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2(2x x y)

I will interpret this as

2(2x * y)

 

2*2xy=4xy

 May 23, 2016
 #2
avatar+9675 
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2(2x×y)=2(2xy)=4xy

.
 May 23, 2016

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