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Zeroes of a Polynomial

Find the valu...

Question

Find the value of the polynomial $p (x) = 5 x^{2} - 3 x + 7$ at $x = 1$

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Solution

$p (x) = 5 x^{2} - 3 x + 7$

Put, $x = 1$

$p (1) = 5 \times 1^{2} - 3 \times 1 + 7 = 5 - 3 + 7 = 2 + 7 = 9$

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