Simplify (x^2+6x-5)+(2x^2+15)

$(x^{2} + 6 x - 5) + (2 x^{2} + 15)$

Step 1

Remove parentheses.

$x^{2} + 6 x - 5 + 2 x^{2} + 15$

Step 2

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

$3 x^{2} + 6 x - 5 + 15$

Step 3

Add $- 5$ and $15$ .

$3 x^{2} + 6 x + 10$