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September 20, 2014

September 20, 2014

Posted by **John** on Sunday, September 30, 2012 at 2:21pm.

it is

4i^2(-4i) = -16i^3 ?

If it is not right, please help.

thanks!

- Math - Imaginary -
**Reiny**, Sunday, September 30, 2012 at 3:37pm(4i)(-4i) --------> (4)(4) = 16 and i(-i) = -i^2

= -16i^2

= -16(-1) = 16

I have no clue what you were doing, or how you got that answer.

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