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can u simplify this expression 12ab+8ab+5ab ?

can u simplify this expression 12ab+8ab+5ab ?  
 
a .3ab
b.25ab
c.25(3ab)
d.25+ab
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1 Answer

 
 
12ab + 8ab + 5ab
 
is the same as doin 12 +5 +8 = 25
 
so 12ab + 5ab + 8ab = 25ab
 
the answer is b

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