Question

Given the function f(x) = 5x + 3x^2, then what is - f(x) as a simplified polynomial?

Answer 1

Solution

For this case we have this function given:

$f(x)=5x+3x^2$

And we want to find -f(x) so we can do this:

$-f(x)=-5x-3x^2$

And we can take common factor x and we got:

$-f(x)=-x(5+3x)$