Question

помогите пожалуйста

Answer 1

$(2 {x}^{5} {y}^{7} ) {}^{3} div ( {x}^{14} y {}^{20} ) - (3x {y}^{5} ) {}^{3} div (x {}^{2} y {}^{14} ) = \ = frac{ (2 {x}^{5} {y}^{7} ) {}^{3}}{{x}^{14} y {}^{20}} - frac{(3x {y}^{5} ) {}^{3}}{x {}^{2} y {}^{14}} = frac{8 {x}^{15}y {}^{21} }{{ x}^{14} y {}^{20}} - frac{27 {x}^{3} {y}^{15} }{ {x}^{2} {y}^{14} } = \ = frac{8xy}{1} - frac{27xy}{1} = 8xy - 27xy = - 19xy$