Question

Factor.

x^2 + 7x + 10

A. (x + 2)(x + 5)

B. (x + 1(x + 10)

C. (x + 1)(x + 9)

D. Prime

Answer 1

Since you want numbers that add to 7, and multiply to 10, you can start by making a list of things that multiply to 10.

10*1
5*2
2*5
1*10

and then check adding

10 + 1 = 11
5+2=7 ----> this works !!!

Answer 2

So we get (x+___)(x+___)

Answer 3

does this make sense?

Answer 4

To see the multi, and add thing.... expand \[(x+a)(x+b) = x^2+(a+b)x+ab\]

Answer 5

@Redcan so which answer choice is that?