Evaluate (-7x^2-10x-6)+(-3x^2+x)

$(- 7 x^{2} - 10 x - 6) + (- 3 x^{2} + x)$

Remove parentheses.

$- 7 x^{2} - 10 x - 6 - 3 x^{2} + x$

Subtract $3 x^{2}$ from $- 7 x^{2}$ .

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

Add $- 10 x$ and $x$ .

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