Question

Разложи на множители поподробнее

Answer 1

$(d^{18}+u^{18})^{2}-(d^{18}-u^{18})^{2}-d^{2}u^{2}=[Formula:(a-b)^{2}=a^{2}-2ab+b^{2}]=(d^{18}+u^{18}-(d^{18}-u^{18}))*(d^{18}+d^{18}-0)=2d(d^{18}+u^{18}-d^{18}+u^{18})=2u^{18}*2d^{18}=4d^{18}u^{18}-d^{2}u^{2}.$

Подходит: 3,2,1 варианты.