Simplify 3x-2x^2+4-x^2+x

$3 x - 2 x^{2} + 4 - x^{2} + x$

Step 1

Add $3 x$ and $x$ .

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

Step 2

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

$- 3 x^{2} + 4 + 4 x$

Step 3

Move $4$ .

$- 3 x^{2} + 4 x + 4$