Question

Which expression shows 28 + 35 as the product of their greatest common factor and the sum of two whole numbers with no common factor?
A. 7(6 + 3)
B. 9(4 + 3)
C. 7(4 + 5)
D. 9(2 + 5)

Answer 1

Answer:

$C. 7(4 + 5)$

Step-by-step explanation:

we have

$28+35$

we know that  $28=7*4$

and that $35=7*5$

so the number 7 is their greatest common factor, thus instead of $28 + 35$ we can write the following:

$7*8+7*5$

and taking the common factor out:

$7(4+5)$

we get that the answer that is the product of the greatest common factor (7) and the sum of two whole numers (4+5) is opction C.

Answer 2

The answer is C. because it is the only one that does not contain a common factor