Question

упростить выражение y^2*2x-3x^2*2y+2xy*2y-xy(-4x)

Answer 1

$y^{2} 2x-3 x^{2} 2y+2xy2y-xy(-4x)$
$2xy^{2} -6 x^{2} y+4xy^{2} +4 x^{2} y$
$2xy^{2} -2 x^{2} y+4xy^{2}$
$6xy^{2} -2 x^{2}y$
$2xy(3y-x)$