SOLUTION: 3x squared=39....solve by using square root property

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Question 477247: 3x squared=39....solve by using square root property
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

3x%5E2=39 Start with the given equation.


x%5E2=%2839%29%2F%283%29 Divide both sides by 3.


x%5E2=13 Reduce.


x=%22%22%2B-sqrt%2813%29 Take the square root of both sides.


x=sqrt%2813%29 or x=-sqrt%2813%29 Break up the "plus/minus" to form two equations.

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Answer:


So the solutions are x=sqrt%2813%29 or x=-sqrt%2813%29.