Question

Which of the following is not a quadratic equation
(a) x² + 3x – 5 = 0
(b) x² + x3 + 2 = 0
(c) 3 + x + x² = 0
(d) x² – 9 = 0​

Answer 1

Answer:

C

Step-by-step explanation:

A is a quadratic equation, C is a quadratic equation and D is a quadratic equation, so B must not be a quadratic equation