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1 Marks Question

Question 511 Mark
Find the zero of the polynomial: $\text{p}(\text{x})=\text{ax},\ \text{a}\neq0$
Answer
$\text{p}(\text{x})=0$$\Rightarrow\text{ax}+\text{b}=0$
$\Rightarrow\text{x}=-\frac{\text{b}}{\text{a}}$
Hence, $-\frac{\text{b}}{\text{a}}$ is the zero of the polynomial $p(x).$
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Question 521 Mark
Determine the degree of the following polynomials.
$y^2\left(y-y^3\right)$
Answer
$y^2\left(y-y^3\right)=y^y-y^5$
Here, the highest power of $y$ is $5$ . So, the degree of the polynomial is $5 .$
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1 Marks Question - Page 2 - Maths STD 9 Questions - Vidyadip