Respuesta :

minhnhatphan

Answer:

2f + 16

Step-by-step explanation:
(f3-5f+25) - (4f2-12f+9)

( f x 3 - 5f + 25) - (4f x 2 - 12f + 9)

(3f - 5f + 25) - (8f - 12f + 9)

(-2f + 25) - (-4f + 9)

-2f + 25 + 4f - 9

4f - 2f + 25 - 9

2f + 16 (final answer)