Question

Check whether is the quadratic equation or not? (y-2)(y+1) = (y-1)(y+3)​

Answer 1

Answer:

Known:

Highest power/degree of a quadratic equation is 2

Given:

y

2

+

y

1

=2

⇒y

3

+1=2y

Only one variable y.

Maximum index/power =3

So, it is not a quadratic equation.