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Since the numbers are complex, let's re-write the question as:

i*sqrt(4) * i*sqrt(9)

i^2, by the good graces of algebra, is equal to -1, so your answer simplifies to:

= -1 * sqrt(4) * sqrt(9)
= -1 * 2 * 3
= -6

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โˆ™ 2009-11-29 18:14:38
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Q: Square root negative 4 times square root negative 9?
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