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IS THE ANSWER 1, 3, 17, 57 or none of the aboveIf none of the above please write the correct answer!Please answer step by step explanation

IS THE ANSWER 1, 3, 17, 57 or none of the aboveIf none of the above please write the-example-1
User Tienph
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1 Answer

2 votes

ANSWER

None of the above.

Step-by-step explanation

We want to solve the equation given for x:


\sqrt[]{x-1+5}=9

First, simplify the radical:


\sqrt[]{x+4}=9

Now, find the square of both sides of the equation:


\begin{gathered} (\sqrt[]{x+4})^2=9^2 \\ x+4=81 \end{gathered}

Finally, simplify by subtracting 4 from both sides of the equation:


\begin{gathered} x=81-4 \\ x=77 \end{gathered}

Hence, the correct option is "None of the above".

User Inga
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