Question

If f ( x ) = 16x^2 - 7 and g ( x ) = 2x^2 + 11, then find f ( x ) - g ( x )

Answer 1

14x^2 - 18

Explanation:

f ( x ) = 16x^2 - 7

g ( x ) = 2x^2 + 11

We are subtracting the functions

f(x) - g(x) = 16x^2 -7 - ( 2x^2 +11)

Distribute the minus sign

=16x^2 -7 - 2x^2 -11

Combine like terms

=14x^2 - 18