Question

If f(x)=4x^2+1 and g(x)=x^2-5, find (f-g)(x)

Answer 1

3x² + 6

Explanation:

(f - g)(x)

= f(x) - g(x)

= 4x² + 1 - (x² - 5) ← distribute parenthesis by - 1

= 4x² + 1 - x² + 5 ← collect like terms

= 3x² + 6