Question

which of the following is not quadratic equation
a) x^2- 2x = (-2) (3-x)
b) (x-2) (x+1) =9x-1) (x+3)
c) (x-3) (2x+1) =x (x+5)
d) x^3 - 4x^2 -x+1= (x-2)^3

Answer 1

Answer:

Option D is not the a Quadratic Equation.

Step-by-step explanation:

Because the Exponent of the first term is 3 ...

Therefore it's a Cubic Equation!

Hope all doubts are clear!