Question

If f(x) = 4x ^ 2 - 3 and g(x) = x + 1 , find (f - g)(x) O A. 4x ^ 2 - x - 2 B. x - 4x ^ 2 - 2 O C. 4x ^ 3 - 3 O D. 4x ^ 2 - x - 4

Answer 1

D

Explanation:

If f(x) = 4x ^ 2 - 3 and g(x) = x + 1 , find (f - g)(x)

A. 4x ^ 2 - x - 2

B. x - 4x ^ 2 - 2

C. 4x ^ 3 - 3

D. 4x ^ 2 - x - 4

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

4x ^ 2 - 3 - (x + 1 ) Multiply the brackets by the negative.

4x ^ 2 - 3 -x - 1 Add like terms.

4x ^ 2 - x - 4 Final Answer