Question

What is 2f + 4f + 2 – 3 evaluated at f = 3?

Answer 1

17

2(f) + 4(f) + 2 - 3 | (f) = 3

2(3) + 4(f) + 2 - 3

(6 + 12) + (2 - 3)

(18) - (1)

Explanation:

Answer 2

17

Explanation:

given

2f + 4f + 2 - 3 ← simplify by collecting like terms

= 6f - 1 ← substitute f = 3 into the expression

= (6 × 3) - 1 = 18 - 1 = 17