Question

СРОЧНОО. Разложи на множители:
um12+uy12−ym12−y13.

Answer 1

$um^{12}+uy^{12}-ym^{12}-y^{13}=\\=u(m^{12}+y^{12})-y(m^{12}+y^{12})=\\=(u-y)(m^{12}+y^{12})\\\\Otvet:(u-y)(m^{12}+y^{12}).$