Question

G(x) = x^2– 5x f(x) = 2x +1
Find (g - f)(x)

Answer 1

x^2 - 7x - 1

Explanation:

g(x) = x^2– 5x

f(x) = 2x +1

(g - f)(x)

expand to get

gx - fx

Slot in the values

(x^2– 5x) - (2x +1)

expand

x^2 - 5x - 2x - 1

x^2 - 7x - 1