Question
Zero of the polynomial p(x) = 2x + 5 is:
  1. $\frac{-2}{5}$
  2. $\frac{-5}{2}$
  3. $\frac{2}{5}$
  4. $\frac{5}{2}$

Answer

  1. $\frac{-5}{2}$
Solution:
p(x) = 2x + 5
Now, p(x) = 0
⇒ 2x + 5 = 0
⇒ 2x = -5
$\Rightarrow\text{x}=-\frac{5}{2}$

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