Question

If f ( x ) = 5x^2 - 2x + 6 and g ( x ) = 4x^2 + 6x - 1,
then find f ( x ) + g ( x )

Answer 1

9x^2+4x+5

Explanation:

f ( x ) = 5x^2 - 2x + 6

g ( x ) = 4x^2 + 6x - 1,

Add the functions together

f(x)+ g(x) = 5x^2 - 2x + 6 + 4x^2 + 6x - 1

Combine like terms

=9x^2+4x+5