sederhanakan bentuk aljabar berikut x per x+y +y per x-y

Aljabar.

[tex]\displaystyle \frac{x}{x+y}+\frac{y}{x-y}\\ =\frac{x(x-y)+y(x+y)}{(x+y)(x-y)}\\ =\frac{x^2+y^2}{x^2-y^2}[/tex]