Question

Is   4 - y = 3 / y2  a quadratic equation​

Answer 1

no, it not a quadratic equation.

4 - y = 3 / y²

=> 4 = 3 / y² + y

=> 4 = (3 + y³) / y²

=> 4 y² = 3 + y³

=> y³ - 4 y² + 3 = 0

from the above it is clear that it is not a quadratic equation but a cubic equation.

I hope this will help you somehow..