Write in Standard Form (-5x^2-9x+6)+(6x^2+10)

$(- 5 x^{2} - 9 x + 6) + (6 x^{2} + 10)$

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$a x^{2} + b x + c$

Add $- 5 x^{2}$ and $6 x^{2}$ .

$x^{2} - 9 x + 6 + 10$

Add $6$ and $10$ .

$x^{2} - 9 x + 16$