Question

(7xy^2-11x^2y^4/2xy^2)^2:(9xy)

Answer 1

если где-то не понятно что написано, спрашивайте

Answer 2

$(7x {y}^{2} - \frac{11 {x}^{2} {y}^{4} }{2x {y}^{2} })^{2} \div (9xy) = ( \frac{14 {x}^{2} {y}^{4} - 11 {x}^{2} {y}^{4} }{2x {y}^{2} } )^{2} \div (9xy) = ( \frac{3 {x}^{2} {y}^{4} }{2x {y}^{2} })^{2} \times \frac{1}{9xy} = \frac{9 {x}^{4} {y}^{8} }{4 {x}^{2} {y}^{4} } \times \frac{1}{9xy} = \frac{9 {x}^{4} {y}^{8} }{4 \times 9 {x}^{3} {y}^{5} } = \frac{x {y}^{3} }{4}$