Question

um11+uy11−ym11−y12 разложите на множители

Answer 1

$um^{11}+uy^{11}-ym^{11}-y^{12}=\\=u(m^{11}+y^{11})-y(m^{11}+y^{11})=\\=(m^{11}+y^{11})(u-y)$