Answer:

Step-by-step explanation:
Given:

This reads as: 256 to the power of "-4 to the power of 3/2".
Therefore, we need to deal with the "-4 to the power of 3/2" first.
Rewrite the 4 as 2²:




Therefore:

Replace "-4 to the power of 3/2" with -8 :

Rewrite 256 as 2⁸ :




In one complete calculation:

Learn more about exponent rules here:
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Answer: -512
Step-by-step explanation:
(18-26) = -8
(-8)^3 = (-8)*(-8)*(-8) = -512
Answer:
<u>The simplified expression is y raised to the 2/8 power</u>
Step-by-step explanation:
Let's recall that one of the properties of fractional exponents is:
x ^ a/b = ᵇ√x ᵃ
therefore,
⁸√y² = y ^2/8
<u>The simplified expression is y raised to the 2/8 power</u>
The answer is x=13 because the equations equal each other