Question

For f(x) = 4x + 1 and g(x) = x2 – 5, find (f - g)(x).

Answer 1

9x

Explanation:

Divide x from both equations on both sides to isolate the f and the g. Then, calculate to find f and g alone.

f = 4 + 1 = 5.

g = 1^2 - 5 = 1 - 5 = -4.

Subtract g from f, and you get 9. Finally multiply this product by x to find the answer to the expression (f-g)(x).