Posted by **alicia** on Monday, December 7, 2009 at 6:16pm.

A student claims that the equation Ö(-x) = 3 has no solution, since the square root of a negative number does not exist. Why is this argument wrong?

- math -
**bobpursley**, Monday, December 7, 2009 at 6:18pm
sqrt (-9)=3i

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