Question

Поманите 5 дам 30 балов срочно

Answer 1

$\frac{y-2x^2}{5x^3y} +\frac{2x-y}{x^2y} =\frac{x^2y(y-2x^2)}{(5x^3y)(x^2y)} +\frac{5x^3y(2x-y)}{(x^2y)(5x^3y)} =\frac{x^2y^2-2x^4y+10x^4y-5x^3y^2}{5x^5y^2} =\frac{x^2y^2+8x^4y-5x^3y^2}{5x^5y^2} =\frac{x^2y(y+8x^2-5xy)}{5x^5y^2} =\frac{y+8x^2-5xy}{5x^3y}$