ДАЮ 15 БАЛЛОВ!!!!!!! ПОМОГИТЕ ПЛИЗ
упростите 16x^5y^4zxxz^4+14xyz^4xx^5y^2zy-7x^7yz^2yz^2yyz

^-степень

  16x⁵y⁴zxxz⁴ + 14xyz⁴xx⁵y²zy - 7x⁷yz²yz²yyz =

= 16x⁵⁺¹⁺¹y⁴z¹⁺⁴ + 14x¹⁺¹⁺⁵y¹⁺²⁺¹z⁴⁺¹ - 7x⁷y¹⁺¹⁺¹⁺¹z²⁺²⁺¹ =

= 16x⁷y⁴z⁵ + 14x⁷y⁴z⁵ - 7x⁷y⁴z⁵ =

= (16+14-7)x⁷y⁴z⁵ = 23x⁷y⁴z⁵