Question 215499
What is the solution set of {{{x^3-27=0}}}?


Step 1.  Add 27 to both sides of the equation


{{{x^3-27=0}}}


{{{x^3-27+27=27}}}


{{{x^3=27}}}


Step 2.  Taking the cube root to both sides of the equation yields {{{x=3}}} since {{{3^3=3*3*3=27}}}.


Step 3.  ANSWER.  {{{x=3}}}.


I hope the above steps were helpful.


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Respectfully,
Dr J