Consider the function f(x) = x2 + 3x − 7. Find the value of f(x) when x = 3 and select the correct answer below.

Respuesta :

f(x) = x2 + 3x − 7. 
f(x) = 6 + 9 -7
f(x) = 9 
*3 times 2 = 6
*3 times 3 = 9 
so thats where the 6 and 9 came from 
6 + 9 = 15 
15 - 7 = 8 
so f(x) =8
fxx=x2+3x−7xf=x2+3x−7xAnswer:f=x2+3x−7x