Answer
-4$x^{2}$-2x-13
Work Step by Step
The phrase, "Subtract (16$x^{2}$-x+1) from (12$x^{2}$-3x-12)." can be translated to the expression: (12$x^{2}$-3x-12)-(16$x^{2}$-x+1)
Simplify:
(12$x^{2}$-3x-12)-(16$x^{2}$-x+1)
=12$x^{2}$-3x-12-16$x^{2}$+x-1
=12$x^{2}$-16$x^{2}$-3x+x-12-1
=-4$x^{2}$-2x-13