Step 1. Since 8 x 8 = 64, The square root of 64 is 8.
Step 2. Take the square root of both sides.
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Step 3. </span>Simplify
to 
Step 4. Simplify square root
Step 2. Take the square root of both sides.
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Step 3. </span>Simplify
Step 4. Simplify square root