Объяснение:
t×5/y-y/t
t×5/y=t×5/y=5t/y
5t/y-y/t=t×5t/ty-y/t=t×5t/ty-y×y/yt
Вычисляем:
5t^2/ty-y2/ty= 5t^2-y^2/ty
Объяснение:
t×5/y-y/t
t×5/y=t×5/y=5t/y
5t/y-y/t=t×5t/ty-y/t=t×5t/ty-y×y/yt
Вычисляем:
5t^2/ty-y2/ty= 5t^2-y^2/ty