Respuesta :

Answer:

36

Step-by-step explanation:

Follow P(parenthesis)e(exponents)m(multiply)d(divide)a(addition)s(subtraction)

Solve the exponent first  

3(3)^2+3

f(3) = 3(9) + 9

Solve simplified problem

f(3) = 27 + 9

f(3) = 36

Answer: f(3)=5

Explanation:

Simply substitute the value of 3 given. In other words, f(3) is the function of f(x), however, in this case, x is 3

f(3)=3(3)−4

Distribute 3 through the parenthesis

f(3)=9−4

Simplify

f(3)=5