4-4х^2=0
-15-х^2=0
16-64t^2=0
Ответ:ответ и решение на фото.
Объяснение:
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\