If $f (x) = x^{2} + x + 5$ then find $f (1)$

7

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5

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4

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None of the above

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Solution

The correct option is A $7$
$f (x) = x^{2} + x + 5$

Put $x = 1$

$\Rightarrow$ $f (1) = 1 + 1 + 5$

$\Rightarrow$ $f (1) = 7$

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