Question 179567
{{{4x^2=36}}} Start with the given equation.



{{{x^2=(36)/(4)}}} Divide both sides by {{{4}}}.



{{{x^2=9}}} Reduce.



{{{x=0+-sqrt(9)}}} Take the square root of both sides.



{{{x=sqrt(9)}}} or {{{x=-sqrt(9)}}} Break up the "plus/minus" to form two equations.



{{{x=3}}} or {{{x=-3}}}  Take the square root of {{{9}}} to get {{{3}}}.




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Answer:



So the solutions are {{{x=3}}} or {{{x=-3}}}.