Solve the following equation with a rational exponent: x23=64 .(1 point)

Responses

512
512

8
8

32
32

16

1 answer

To solve the equation \( x^{23} = 64 \), you want to isolate \( x \). This can be done by raising both sides of the equation to the power of \( \frac{1}{23} \).

Starting with the equation:

\[ x^{23} = 64 \]

Raise both sides to the power of \( \frac{1}{23} \):

\[ x = 64^{\frac{1}{23}} \]

Next, we can express \( 64 \) as a power of \( 2 \):

\[ 64 = 2^6 \]

So now we rewrite the equation:

\[ x = (2^6)^{\frac{1}{23}} = 2^{\frac{6}{23}} \]

Now we evaluate \( 2^{\frac{6}{23}} \). Since \( \frac{6}{23} \) is a small exponent, we can recognize that \( 2^{\frac{6}{23}} \) is a number between \( 0 \) and \( 2 \).

Given the options provided:

  • 512
  • 8
  • 32
  • 16

None of these options directly match \( 2^{\frac{6}{23}} \).

However, recognize that the options are potentially looking for the correct power equation's result. But since \( 2^{\frac{6}{23}} \) does not match the list, and since it seems we need to find \( x \), we will evaluate whether we made any slips.

Let’s convert the answer back to base 2:

Using \( 64 = 2^6 \) again, the closest integer that corresponds nicely in terms of rounding approximation is examining the integer options provided. We can calculate \( \sqrt[23]{64} \approx 2^{\frac{6}{23}} \).

Evaluating approximate powers, we see none of these equalities directly lead back, thus since we are not transforming, and exploration shows:

Calculating by further exponent evaluations:

  1. \( 2^6 = 64 \) is indeed true.
  2. To rationalize further, \( x \) can hint closer to \( 2^3 = 8 \) may yield as potential simplest estimates closest to logical values and relative reception.

Hence for the choices listed, the excess value does hint clearly at 8 since:

Result:

The best closest estimate would yield towards statement choice.

So the answer based on closest power and expressing the number equivalently tends towards \( 8 \).

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