How to do this question?

Step-by-step explanation:

Knowing that f(x) = 2x^2 - x - 4 and f^2(x) means f(f(x)), we get:

f^2(x) = f(f(x)) = 2(2x^2 - x - 4)^2 - (2x^2 - x - 4) - 4

You have to square the whole thing... You'll get a 4th degree equation. I know it's a bit boring but whatever.

1=b 2=c 16=c can i get brainliest

choice b

step-by-step explanation:

f(x) = 88x^2 -264x + 300

the line of symmetry of a parabola is defined by

h = -b/2a

where ax^2 +bx+c=0

so

h = - -264/ (2*88)

h = 3/2

so x = 1.5