To factor the expression 60 + 45, find the greatest common factor, which is 15, and write the expression as 15 × 7.
The question "which expression shows a way to factor 60 + 45" is asking for a method to express the sum of 60 and 45 as a product of their common factors.
Factoring is a mathematical process used to write a number or expression as the product of its factors, which are numbers that divide exactly into the original number.
To factor the expression 60 + 45, first identify the greatest common factor (GCF) of 60 and 45.
Both numbers are divisible by 15, so 15 is the GCF.
You can then factor out 15 from both terms:
60 + 45 = 15(4) + 15(3) = 15(4 + 3) = 15 × 7
Therefore, 15 × 7 is the factored form of the expression 60 + 45.