Question
Solve for \( x \): \( x^{\frac{2}{3}} = 9 \)
Ask by Chadwick Ingram. in South Africa
Jan 23,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
\( x = 27 \) or \( x = -27 \).
Solution
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The Deep Dive
To solve the equation \( x^{\frac{2}{3}} = 9 \), start by raising both sides to the power of \( \frac{3}{2} \) to eliminate the exponent on the left side. This gives you: \[ x = 9^{\frac{3}{2}} \] Now calculate \( 9^{\frac{3}{2}} \). First, find the square root of 9, which is 3, and then raise it to the third power: \[ 3^3 = 27 \] So, the solution is: \[ x = 27 \]