Question

Let f(x) = 3x^2 – 8x + 5 and let g(x) = 2x – 8. Find

f(x) – g(x).
A.3x2 – 10x – 3
B.3x2 – 10x + 13
C.5x2 – 10x + 13
D.5x2 – 10x - 3

Answer 1

B. 3x² – 10x + 13

Explanation:

given:

f(x) = 3x² – 8x + 5

g(x) = 2x – 8

f(x) - g(x)

= (3x² – 8x + 5) - (2x – 8)

= 3x² – 8x + 5 - 2x + 8

= 3x² – 10x + 13