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Geometric Progression

If px=ix2+5...

Question

If $p (x) = i x^{2} + 5 x + 8$ , then $p (- 1)$ =

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Solution

We have,
$p (x) = i x^{2} + 5 x + 8$

Put $x = - 1$ , we get
$p (- 1) = i (- 1)^{2} + 5 (- 1) + 8$
$p (- 1) = i - 5 + 8$
$p (- 1) = i + 3$

Hence, this is the answer.

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