Algebra Examples

$f (x) = - x^{2}$ , $g (x) = 4 x - x^{2}$

Step 1

Replace the function designators with the actual functions in $f (x) + g (x)$ .

$- x^{2} + 4 x - x^{2}$

Step 2

Subtract $x^{2}$ from $- x^{2}$ .

$- 2 x^{2} + 4 x$