<PRE><B>Question 224458</B>
7x^2 = 21 Please help me solve.


Step 1.  Divide 7 to both sides of the equation


{{{7x^2/7=21/7}}}


{{{x^2=3}}}


Step 2.  Take the square root to both sides of the equation


{{{x=sqrt(3)}}} and {{{x=-sqrt(3)}}}


Step 3.  ANSWER:  Solutions are {{{sqrt(3)}}} and {{{-sqrt(3)}}}


I hope the above steps were helpful.


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Good luck in your studies!


Respectfully,
Dr J</PRE>