Respuesta :

Answer:

0

Step-by-step explanation:

Since f(x)=18 you would do:

f(x)= 18(2)-2(18)+3

f(x)=36-36+3

Final Answer: 0

Step-by-step explanation:

f(x) = x^2 - 2x + 3

f(x) = 18

x^2 - 2x + 3 = 18

x^2 - 2x + - 15 = 0

(x-5) (x+3) = 0

x = 5 (or) x = -3

not sure of the answer^^

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