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2. Polynomials
easy
Which of the following expressions are polynomials in one variable and which are not $?$ State reason for your answer. If the given expression is a polynomial, state whether it is a polynomial in one variable or not
$x^{2}+x-3+\frac{4}{x}$
Option A
Option B
Option C
Option D
Solution
Given expression $x^{2}+x-3+\frac{4}{x}$ is not a polynomial because the index of $x$ in the fourth term $\frac{4}{x}$ is $-1$
Standard 9
Mathematics
