Which of the following is non-quadratic polynomial.

x^{2} + 2

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x^{2} + 3 x

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4 x^{4} + 3 y

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x^{2}

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Solution

The correct option is B $4 x^{4} + 3 y$
$x^{2} + 2, x^{2} + 3 x$ and $x^{2}$ are all quadratic polynomials. But $4 x^{4} + 3 y$ is not a quadratic polynomial because this polynomial has a degree $4$ .

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