What are the zeros of this function? f(x) = (x + 4)^2 - 9

A) {7}
B) {-4,9)
C) {-4,4}
D) {-7, -1}

the answer would be c ≈ 18.852*3.14= 6.286.28*3=18.85

Ithink the answer is b.

2(10 - 13x) + 9x = -34x + 6020 - 26x + 9x = -34x + distributive property-17x = -34x + subtraction property (subtracted 20 from both sides)17x = addition property (added 34x to both sides)x = 40/ division property (divided both sides by 17)