Which of following expressions are polynomials in one variable and which are not ? State reasons for

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2. Polynomials

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Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer. $4 x^{2}-3 x+7$.

Option A

Option B

Option C

Option D

Solution

$4 x^{2}-3 x+7$

$\Rightarrow 4 x^{2}-3 x+7 x^{0}$

$\because$ All the exponents of $x$ are whole numbers.

$\therefore $ $4 x ^{2}-3 x +7$ is a polynomial in one variable.

Standard 9

Mathematics

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