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Mathematics 48 Online
OpenStudy (anonymous):

if f(x)=x^2-3 and f(a)= 46, what is the value of a? Explain.

OpenStudy (aum):

\[ f(x)=x^2-3 \\ f(a) = a^2 - 3 = 46 \\ a^2 = 49 \\ a = \pm7 \]

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