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Which of the following is not a quadratic equation?

Question

Which of the following is not a quadratic equation?

A

x^{2} + 6 y + 2

B

(x - 2) + (x + 2)^{2} + 3

C

(3 x - 2)^{3} + \frac{1}{2} x - 4

D

3 x^{2} - 6 x + \frac{1}{2}

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Which of the following is not a quadratic equation?

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Text solutionVerified

A quadratic equation can be expressed in the form

a x^{2} + b x + c = 0

.
Here, the only equation that has a third degree variable is

(3 x - 2)^{3} + \frac{1}{2} x - 4

and all other equations have two degree variables.
So,

(3 x - 2)^{3} + \frac{1}{2} x - 4

is not a quadratic equation.

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Question Text	Which of the following is not a quadratic equation?
Answer Type	Text solution:1
Upvotes	150