Question

F(x) = 2x2 + 4x – 5

g(x) = 623 – 2x2 + 3

Find (f – g)(x).

A. (f - g)(x) = –6x3 + 4x2 + 4x – 2

O B. (f – g)(x) = -63+ 4x2 + 4x – 8

c. (f - g)(x) = 63

4x2

42 + 8

D. F -

*) = 6x3 + 4x – 2

Answer 1

Explanation:

f(x) = 2x² + 4x - 5

g(x) = 6x³ - 2x² + 3

(f-g)(x) = f(x) - g(x)

= (2x² + 4x - 5) - (6x³ - 2x² + 3)

= -6x³ + (2 + 2)x² + 4x + (-5 - 3)

= -6x³ + 4x² + 4x - 8

Option → B