Answer:
56
Step-by-step explanation:
f (-4)=(-4^2)-8 (-4)+8
f(-4)=54
With a scientific calculator
The fraction Is already in its simplest form :)
They do not have any common factors
Three terms, which makes this expression a trinomial.
5x²-4x -12
(5x + 6)(x-2)
5x² -10x + 6x -12