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just olya [345]
3 years ago
15

Consider the expression 63 + 81.

Mathematics
2 answers:
viktelen [127]3 years ago
8 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.
kvv77 [185]3 years ago
3 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).

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