Question

For f(x)=2x+1 and g(x)=xsquared-7 find (f-g)(x)

Answer 1

(f-g)(x) = - x² + 2 x + 8

Explanation:

Explanation:-

Given f(x) = 2 x +1

g(x) = x² - 7

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

= (2 x + 1) - ( x² -7)

= - x² + 2 x + 1 + 7

= - x² + 2 x + 8

(f-g)(x) = - x² + 2 x + 8