Question

If f(x) = 4х2 +1 and g(x) = х2 – 5, find (f-g)(x).

А
3
4
ов. 3х2 +6
Ос. 5х2 - 6
I + II
OD. 5х2 - 4

Answer 1

The answer is B

Explanation:

f(x) = 4x² + 1

g(x) = x² - 5

(f-g)(x) = 4x² + 1 - (x²-5)

= 4x² + 1 - x² + 5

= 3x² + 6