(-9i)(3i)=0

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Solution for (-9i)(3i)=0 equation: 


Simplifying
(-9i)(3i) = 0

Remove parenthesis around (-9i)
-9i(3i) = 0

Remove parenthesis around (3i)
-9i * 3i = 0

Reorder the terms for easier multiplication:
-9 * 3i * i = 0

Multiply -9 * 3
-27i * i = 0

Multiply i * i
-27i2 = 0

Solving
-27i2 = 0

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Divide each side by '-27'.
i2 = 0

Simplifying
i2 = 0

Take the square root of each side:
i = {0}

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