Find the sum of -3×2+5x-8 and -10×2-x-3

Write the problem as a mathematical expression.

-3×2+5x-8-10×2-x-3

Subtract 10×2 from -3×2.

-13×2+5x-8-x-3

Subtract x from 5x.

-13×2+4x-8-3

Subtract 3 from -8.

-13×2+4x-11

Add Find the sum of -3x^2+5x-8 and -10x^2-x-3