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Geometrical Meaning of Zeros of a Polynomial

If pu = 4u2...

Question

If $p (u) = 4 u^{2} + 8 u$ . Find zeroes.

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Solution

$p (u) = 4 u^{2} + 8 u$
To find zeroes, equate $p (u) = 0$
$4 u^{2} + 8 u = 0$
$⟹ u (4 u + 8) = 0$
$⟹ u = 0 a n d 4 u + 8 = 0$
$⟹ u = 0 a n d u = - 2$

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