Given a polynomial and one of its factors, find the remaining factors of the polynomial. x^3+7x^2+7x-15 : x-1

i think, im not sure

Step-by-step explanation:

options?.:

x=1

x=−3

x=−5

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10