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
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Answer 1

THE ANSWER FOR YOUR QUESTION IS

OPTION (B) x2+x3+2=0

HOPE THIS MAY HELP YOU

Answer 2

x²+x³+2=0 is not a quadratic equation. (Option b)

• A quadratic equation is an equation in which the highest power of a variable in the equation is two.
• The highest power is called the degree of the equation and in x²+x³+2=0 is 3. So, it is a cubic equation, unlike other options.
• A quadratic equation can contain a constant term along with variables.
• Such equations have two solutions or roots and they can be either real or imaginary.