Answer
$2x^{2}+3x-12$
Work Step by Step
The phrase "Subtract $(3x^{2}-x+2)$ from $(5x^{2}+2x-10)$." can be translated to the expression: $(5x^{2}+2x-10)-(3x^{2}-x+2)$
Simplify:
$(5x^{2}+2x-10)-(3x^{2}-x+2)$
$=5x^{2}+2x-10-3x^{2}+x-2$
$=5x^{2}-3x^{2}+2x+x-10-2$
$=2x^{2}+3x-12$