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I NEED HELP!! ITS POLYNOMIALS!! (5a + 7b) - (3a + 2b) =
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4 votes
I NEED HELP!! ITS POLYNOMIALS!!


(5a + 7b) - (3a + 2b) =

User Plaetzchen
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1 Answer

4 votes
(5a+7b)-(3a+2b)

When there is a in front of an expression in parentheses, change the sign of each term in the expression
5a+7b-3a-2b
collect the like terms
5a-3a= 2a
7b-2b= 5b

answer: 2a+5b
hope this helps! :)
User Shouvik
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