Respuesta :
Answer:
x1 = -4, x2 = -16
Step-by-step explanation:
1.- equal the equation to 0
x^2 + 20x + 100 - 36 = 0
x^2 + 20x + 64
2.- factor to simplify.
(x + 4)(x + 16) = 0
3.- equal each factor to 0 and solve for x.
x + 4 = 0, x = -4
x + 16 = 0, x = -16
Answer: A.) x = -16 or x = -4
Step-by-step explanation:
correct on Edge 2021 ✅
