Question

If f ( x ) = 8x^2 - 1 and g ( x ) = 6x^2 + 7, then find f ( x ) - g ( x )

Answer 1

2x^2 -8

Explanation:

f ( x ) = 8x^2 - 1

g ( x ) = 6x^2 + 7

We are subtracting the functions

f(x) - g(x) = 8x^2 -1 - ( 6x^2 +7)

Distribute the minus sign

= 8x^2 -1 - 6x^2 -7

Combine like terms

=2x^2 -8