Question

(x^3+2y)(x^2-2y)-(x^2+2y)(x^3-2y)упростить срочно

Answer 1

$( x^{3} +2y)( x^{2} -2y)-( x^{2} +2y)( x^{3}-2y )= x^{5} -2x ^{3} y+2 x^{2} y-4y^{2} -$
$-( x^{5}-2 x^{2} y+2 x^{3} y-4y^{2} )= x^{5}-2x ^{3} y+2 x^{2} y-4y ^{2} - x^{5} +2 x^{2} y-$
$-2 x^{3} y+4y ^{2} = -4 x^{3} y+4 x^{2} y$