The binomial (a + 5) is a factor of a2 + 7a + 10. what is the other factor? a2 + 7a + 10 = (a + 5)(a + )

(a+2) Is your answer

Step-by-step explanation:

You could try synthetic division, but it's pretty complicated (not to mention for much harder problems), so you should try factoring this. What two numbers multiply up to 10 and add up to 7? Using trial and error, we would find these two numbers to be 2 and 5. Therefore, it factors into (a+5)(a+2).

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.