Answer
136
Work Step by Step
The algebraic expression will be evaluated by substituting the values of $x=-2$ and $y=-4$ into the expression:
$-4x^{2}y-2xy^{2}+xy$
=$-4(-2)^{2}(-4)-2(-2)(-4)^{2}+(-2)(-4)$
=$-4(4)(-4)-2(-2)(16)+(8)$
=$-4(-16)-2(-32)+(8)$
=$64+64+8$
=$136$
