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23 October, 14:40

If f (x) = 2x^2 + 3, find f (3).

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  1. 23 October, 17:09
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    Now, in place of x, you'll have to substitute 3. So,

    f (3) = 2*3^2+3

    =2*9+3

    =18+3

    =21.
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