Zero of polynomial : p(x) = 2x + 5

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2. Polynomials

easy

Find the zero of the polynomial : $p(x) = 2x + 5$

A

$2$

B

$5$

C

$\frac{5}{2}$

D

$\frac{-5}{2}$

Solution

We have $p ( x )= 2x +5$ $\therefore $ $p ( x )=0$

$\Rightarrow $ $2x+5=0$ or $2x=-\,5$

Or $x=\frac{-5}{2}$

Thus, a zero of $2x+5$ is $\frac{-5}{2}$.

Standard 9

Mathematics

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