Question

Which of the following is not a quadratic equation? *
a) x2 - 9 = 0
b) x2 + 3x - 5 = 0
c) x2 + x3 - 5 = 0
d) 3 + x + x2 = 0​

Answer 1

All of these is a quadratic equation

Answer 2

Answer:

c)x²+x³-5=0 is not a quadratic equation as it has max.power as 3 so it's a cubic equation