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How do you write the sum of the number 63+15 as the product of their GCF and another sum?

Answer 1

Levi Adams

#63+15=3xx(21+5)#

The prime factors of #63# are #3xx3xx7#

and those of #15# are #3xx5#

As only #3# is common, GCF is #3#

and as such #63+15# can be written as

#63+15=3xx21+3xx5=3xx(21+5)#

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Answer 2

Gianna Caruso

The sum of two numbers can be expressed as the product of their greatest common factor (GCF) and another sum by factoring out the GCF from both numbers and then expressing them as the product of the GCF and the remaining factors. In this case, the GCF of 63 and 15 is 3. Therefore, 63 + 15 can be written as the product of 3 and the sum of the factors after dividing each number by 3.

63 + 15 = 3 * (21 + 5)

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.