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Solve the following equations

The square root of x^3=8 i know the answer but confused on how to show how i go it. please show steps to the following answer x-1=3 = >x=4

3 square root of x^2=4 anwer is: =>x=2

Solution Preview

1. Because x^3=8=2^3, then we get the cubic root on both sides and get x=2.
2. ...