If f(x) = 2х2 + 3 and g(x) = х2 -7, find (f- а)(x).
А. 3х2 – 4
В. 3х2 – 10
с. х2 – 4
D. х2 + 10

Answer:
C. x^2 -4
Step-by-step explanation:
What you do is subtract the functions as said by
(f-g)(x).
so:
f(x)-g(x)
(2x^2+3) - (x^2 -7)
2x^2 -x^2 +3 - 7= x^2 -4