Parkourpeep Parkourpeep

25-12-2014
Mathematics

Answered

\(A(x)=3^2\)

If 81 came out, what was dropped in?

I have rewritten the problem to \(3^x=81\) but do not know how to solve it.

Verified Answer :

Paweł19 Paweł19

25-12-2014

It is good equation. Look, that:
81 = 3 x 3 x 3 x 3 = 3^4.
So you have to solve:
3^x = 3^4
exponents have to be the same, so
x=4
That's mean that A(4) = 81

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konrad509 konrad509

26-12-2014

\(A(x)=3^x=81\\ 3^x=81\\ 3^x=3^4\\ x=4\)

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