Bribri2703
Answered

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What expression is equal to 12m+12n 
A.12mn
B.12m+n
C.12m-12n
D.12(m+n) 
explain plz 

Sagot :

To check equality we can try transform info correct form.

First, we can take 12 in front of parenthesis.
12m+12n=12(m+n) 
We can do this because factor in front of paranthesis mean that all argument from paranthesis are multiplied by this factor.
We cant say that 12m+12n is equal to 12mn because we cant multiply [tex]m*n[/tex] here.
12m-12n is not correct too.
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