Пмогите, пожалуйста х^2у+2ху^2+у^3 х^8-у^8 а³+b³-a²b-ab²
1. x²y +2xy² +y^3 =y(x² +2xy +y²) =y(x +y)² =y(x +y)(x +y) 2. x^8 -y^8 =(x -y)(x +y)(x² +y²)(x^4 +y^4) 3. (a³ +b³) -ab(a +b) =(a +b)(a² -ab +b²) -ab(a +b) =(a +b)(a² -ab +b² -ab) =(a +b)(a² -2ab +b²) =(a +b)(a -b)² =(a +b)(a -b)(a -b)