Find all the real square roots of 0.0064.
0.25298 and –0.25298
0.0253 and –0.0253
0.08 and –0.08
0.0032 and –0.0032
2. find the real-number root.

–0.605
1.1
–1.1

(a ^ b) ^ c = a ^ (bc) using this formula
 64 * 10^-4.
sqrt(64 * 10^-4) 
sqrt(64) * sqrt(10^-4) 
=+/- 8 * (10^-4)^1/2 
=+/-8 * (10)^(-4 * 1/2) 
=+/-8 * 10^(-2) 
=+/-8 * 0.01 
=+/- 0.08 
hope it helps