Answer:
5
Step-by-step explanation:
Rewrite the expression= 5^2
With the same base number of 5, one adds the exponents.
In this case 5^-2*5^-4*5^8 8-6=2 as the exponent
8
The square root of 16 is 4, because 4 x 4 = 16
The square root of 4 is 2, because 2 x 2 = 4
Therefore, your problem looks like 4 x 2
4 x 2 = 8
the answer is 1760
So <em>x</em> = 17/4.
