Which expression is the factorization of x^2 + 10x + 21?

(x + 3)(x + 7).

Step-by-step explanation:

x^2 + 10x + 21.

You need  2 numbers whose product is the last number in the function (+21) and whose sum is the coefficient of x (+10).

These are + 3 and + 7, so the factors are:

(x + 3)(x + 7).

i dont understand the question? ?

step-by-step explanation:

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.