Question

help me i dont understand how to get the answer and plz comment if you r not sure if its right

Answer 1

you substitute 4 for x
7*4^2 -5

The last one is right
Square 4 multiply then subtract following PEMDAS
Parenthesis
Exponents
Multiply
Divide
Add
Subtract

Answer 2

The last choice, so the answer is
F(4)= 7(4)^2 - 5 = 112 - 7 = 107