SOLUTION: i need some help because im having trouble with this problem 4x^2=36 thank you for the help

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Question 179567: i need some help because im having trouble with this problem
4x^2=36
thank you for the help
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
4x%5E2=36 Start with the given equation.


x%5E2=%2836%29%2F%284%29 Divide both sides by 4.


x%5E2=9 Reduce.


x=0%2B-sqrt%289%29 Take the square root of both sides.


x=sqrt%289%29 or x=-sqrt%289%29 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.