F (x) = 9x^3+2x2-5x+4 and g (x) = 5x^3-7x+4. What is f (x) - g (x) ?

show all steps and final answer

The answer is 4x^3 + 2x^2 + 2x

Step-by-step explanation:

To find a subtracted function, simply change all of the signs in the second function and then combine like terms.

f (x) - g (x) = 9x^3 + 2x^2 - 5x + 4 - 5x^3 + 7x - 4

f (x) - g (x) = 4x^3 + 2x^2 + 2x