SOLUTION: Please solve...I keep getting -4+4√3 and that is not correct. Don't know what step I am missing...? √-8(√-2+√6)

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Please solve...I keep getting -4+4√3 and that is not correct. Don't know what step I am missing...? √-8(√-2+√6)       Log On


   

Question 341898: Please solve...I keep getting -4+4√3 and that is not correct. Don't know what step I am missing...?
√-8(√-2+√6)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Please solve...I keep getting -4+4√3 and that is not correct. Don't know what step I am missing...?
√-8(√-2+√6)
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Notice: sqrt(-1) = i
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Your Problem:
(sqrt(-8))(sqrt(-2) + sqrt(6))
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(2isqrt(2))(isqrt(2) + sqrt(6))
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= -4 + 2isqrt(12)
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= -4 + 4isqrt(3)
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Cheers,
Stan H.