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2. Polynomials
easy
बहुपद $p(x)=2 x+5$ का शून्यक है
A
$-\frac{2}{5}$
B
$-\frac{5}{2}$
C
$\frac{2}{5}$
D
$\frac{5}{2}$
Solution
Finding a zero of $p(x)$ is the same as solving an equation $P(x)=0$
Now, $p(x)=0 \Rightarrow 2 x+5=0$
Which give us $x=-\frac{5}{2}.$
Therefore, $-\frac{5}{2}$ is the zero of the polynomial.
Hence, $(b)$ is the correct answer.
Standard 9
Mathematics