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4 years ago

Consider the expression 63 + 81.

2 answers:

7 0

The GCF of 63 and 81 is 9, so you can use that as the factor outside of the parentheses. Divide both numbers by 9 and write the sum as 9(7 + 9). You can check that the sum 63 + 81 is the same as the product 9(7 +9).

max2010maxim [7]4 years ago

6 0

63+81=9(7+9)
You can check your answer by:
9(7+9)
9(7+ )=63
9( +9)=81
Multiplying the GCF by every term in the parenthesis.

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