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22 April, 12:25

f (x) = x 2 + 1, find f (a + 1)

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  1. 22 April, 12:45
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    f (x) = x^2 + 1, find f (a + 1)

    so

    f (a + 1) = (a+1) ^2 + 1

    f (a + 1) = a^2 + 2a + 1 + 1

    f (a + 1) = a^2 + 2a + 2
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