which of the following is a factor of x^2+19x+48 ?

a. x+19
b.x+3
c.x+48
d.x+2

Question

which of the following is a factor of x^2+19x+48 ?

a. x+19
b.x+3
c.x+48
d.x+2

jagr2713 · Answer

I don't really get the answer choices but what 2 numbers make up 48 & can add up to make 19

loser66 · Answer

@jagr2713  yes , it is. Try one more time

tori1423 · Answer

Do you know the box method?

tori1423 · Answer

|dw:1464656744925:dw|

tori1423 · Answer

then solve for the outside

mjdennis · Answer

@haiyana has left the building...

mathmale · Answer

"which of the following is a factor of x^2+19x+48 ?

a. x+19"

I'd suggest you actually divide x^2 + 19 z + 48 by x+19 (using long division).  Better yet, if you know synthetic div., use it here:  Let your divisor be -19 and represent your quadratic by 1  19  48.

If there's no remainder but zero (0), then x+19 is a factor of x^2+19x+48.

If x+19 proves not to be a factor, then move on to the next answer choice and go through the same division and decision making processes.

adrimit · Answer

(x+3)(x+16)