Solve the following equation with a rational exponent: 2x^3/2=16

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1 answer

To solve the equation \( 2x^{3/2} = 16 \), we can follow these steps:

  1. Isolate the \( x^{3/2} \) term: Divide both sides by 2.

    \[ x^{3/2} = \frac{16}{2} = 8 \]

  2. Remove the exponent: To eliminate the exponent \( \frac{3}{2} \), we raise both sides to the reciprocal of \( \frac{3}{2} \), which is \( \frac{2}{3} \).

    \[ x = 8^{\frac{2}{3}} \]

  3. Calculate \( 8^{\frac{2}{3}} \):

    First, we find \( 8^{\frac{1}{3}} \):

    \[ 8^{\frac{1}{3}} = 2 \]

    Next, we square this result:

    \[ 2^2 = 4 \]

  4. Final Result: Therefore, the solution for \( x \) is:

    \[ x = 4 \]

Thus, the final solution to the equation \( 2x^{3/2} = 16 \) is:

\[ \boxed{4} \]

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