Question

Factor v^2 + 8v + 15

A. (v+8)(v+15)
B. (v+5)(v+15)
C. (v+3)(v+5)
D. (v+1)(v+15)

Answer 1

what are the factors of 15 that add up to 8
let's use 5 and 3
v^2 + 5v+ 3v + 15
v(v + 5) + 3(v + 5)
common v + 5
(v + 5)(v + 3)
answer C

Answer 2

thanks :)