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# Ex.2.1 Q2 Polynomials Solution - NCERT Maths Class 9

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## Question

Write the coefficients of $${x^2}$$  in each of the following:

(i) \begin{align}2 +x^{2}+x \end{align}

(ii) \begin{align}2-x^{2}+x^{3}\end{align}

(iii) \begin{align}\frac{\pi}{2} x^{2}+x \end{align}

(iv)  \begin{align} \sqrt{2} x-1\end{align}

Video Solution
Polynomials
Ex 2.1 | Question 2

## Text Solution

Steps:

(i) \begin{align}&2 +x^{2}+x \\ \end{align}

Coefficient of  \begin{align}x^{2}=1 \end{align}

(ii) \begin{align}2 -x^{2}+x^{3} \end{align}

Coefficient of $$x^{2}=-1$$

(iii) \begin{align}\frac{\pi}{2}\; x^{2}+x \end{align}

Coefficient of \begin{align}x^{2}=\frac{\pi}{2}\end{align}

(iv) \begin{align}\sqrt{2}\; x-1 \end{align}

Coefficient of  $$x^{2}=0$$, since there is no term of  $$x^{2}$$.

Video Solution
Polynomials
Ex 2.1 | Question 2

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