Question

If 3 ^ x + 3 ^ x + 3 ^ x + 3 ^ x = 324 , then find x^2

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Answer 1

Answer:

16 is the answer

Step-by-step explanation:

$4 \times {3}^{x} = 4 \times 81 \\ {3}^{x} = 81 \\ {3}^{x} = {3}^{4} \\ x = 4 \\ {x}^{2} = 16$

Answer 2

Answer:

16 is the answer

Step-by-step explanation:

\begin{gathered}4 \times {3}^{x} = 4 \times 81 \\ {3}^{x} = 81 \\ {3}^{x} = {3}^{4} \\ x = 4 \\ {x}^{2} = 16\end{gathered}

4×3

x

=4×81

3

x

=81

3

x

=3

4

x=4

x

2

=16