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1 December, 00:02

If f (x) = x^2-15 and f (a) = 49, what is the value of a? Explain.

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  1. 1 December, 00:09
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    a=8, - 8

    Step-by-step explanation:

    a^2-15=49

    a^2=49+15

    a^2=64

    a=sqrt (64)

    a=8, - 8
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