Simplify (x^2-6x+12)+(2x^2+4x-10)

$(x^{2} - 6 x + 12) + (2 x^{2} + 4 x - 10)$

Step 1

Remove parentheses.

$x^{2} - 6 x + 12 + 2 x^{2} + 4 x - 10$

Step 2

Add $x^{2}$ and $2 x^{2}$ .

$3 x^{2} - 6 x + 12 + 4 x - 10$

Step 3

Add $- 6 x$ and $4 x$ .

$3 x^{2} - 2 x + 12 - 10$

Step 4

Subtract $10$ from $12$ .

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