Найдите пропущенные значения:

\(\displaystyle \small\left(2x^{\,2}y^{\,3}z^{\,4}-7xy^{\,3}z^{\,2}-8xyz^{\,3}\right)\left(19xy-10xz^{\,3}\right)=\)

\(\displaystyle \small =\)[?||-][ ]\(\displaystyle \small\left(19xy-10xz^{\,3}\right)\)[?|+|-][ ]\(\displaystyle \small \left(19xy-10xz^{\,3}\right)\)[?|+|-][ ]\(\displaystyle \small \left(19xy-10xz^{\,3}\right)\)