How do I solve this radical equation? (the sqrt stands for square root)

I need an actual number so I can check the solution.

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- June 1st 2010, 12:11 PMthecalifornialifeSolving this radical equation
How do I solve this radical equation? (the sqrt stands for square root)

I need an actual number so I can check the solution. - June 1st 2010, 12:16 PMskeeter
- June 1st 2010, 12:24 PMthecalifornialife
Um.... i'm not sure how to connect the two equations. If I use the equation with what is left over, I get 7>0.

- June 1st 2010, 12:30 PMskeeter
- June 1st 2010, 12:30 PMthecalifornialife
However, if I plug the equation to the quadratic formula, I get 1

The solver on quickmath.com says the I is outside the square root. I dont know how they got that. But.... is that the solution? - June 1st 2010, 12:34 PMundefined
- June 1st 2010, 12:37 PMthecalifornialife
Is the imaginary solution I get incorrect? I would hate to teach my girlfriend this for her test and she gets it wrong.

- June 1st 2010, 12:43 PMundefined