14-08-2020
Mathematics

contestada

For g(x)= (x+7)^2 + 6x determine the input of x when the output of g(x) =13

Respuesta :

oscar236 oscar236

14-08-2020

Answer:

x = -2 or -18.

Step-by-step explanation:

(x+7)^2 + 6x = 13

x^2 + 14x + 49 + 6x - 13 = 0

x^2 + 20x + 36 = 0

(x + 2)(x + 18) = 0

x = -2, -18.

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