SOLUTION: x^2+6x-4=0 The solution is x= The answer that I got is -3+sqrt13,-3-sqrt13 is that correct?

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Question 165004: x^2+6x-4=0
The solution is x=
The answer that I got is -3+sqrt13,-3-sqrt13



is that correct?
Answer by orca(409) About Me  (Show Source):
You can put this solution on YOUR website!
It's correct.
It can be solved by either using the quadratic formula or completing square.
x%5E2%2B6x-4=0
x%5E2%2B6x=4
x%5E2%2B6x%2B9=4%2B9
x%5E2%2B6x%2B9=13
%28x%2B3%29%5E2=13
So
x%2B3+=+sqrt%2813%29
or x%2B3=-sqrt%2813%29
Thus the roots are:
x=-3%2Bsqrt%2813%29
x=-3-sqrt%2813%29