Question

F= 3
7 + 4 + f2 - 5f + 2

Answer 1

seven (7)

Explanation:

you are give 7 + 4 +
`f^(2)` - 5f + 2

if f = 3 you have to fill in 3 for all of the f's

7 + 4 +
`3^(2)` - 5(3) + 2

Use PEMDAS

No parenthesis so do exponents first

3^2 = 9

7 + 4 + 9 - 5(3) + 2

Multiplication

-5 × 3 = -15

7 + 4 + 9 - 15 + 2

add all this up

you are left with 7

hope this helps :)