Question:
Zero of the polynomial $p(x)=2 x+5$ is
(a) $\frac{-2}{5}$
(b) $\frac{-5}{2}$
(c) $\frac{2}{5}$
(d) $\frac{5}{2}$
Solution:
The zero of the polynomial p(x) can be obtained by putting p(x) = 0.
$p(x)=0$
$\Rightarrow 2 x+5=0$
$\Rightarrow 2 x=-5$
$\Rightarrow x=-\frac{5}{2}$
Hence, the correct answer is option (b).
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