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Simplifying
(-5i)(-3i) = 0
Remove parenthesis around (-5i)
-5i(-3i) = 0
Remove parenthesis around (-3i)
-5i * -3i = 0
Reorder the terms for easier multiplication:
-5 * -3i * i = 0
Multiply -5 * -3
15i * i = 0
Multiply i * i
15i2 = 0
Solving
15i2 = 0
Solving for variable 'i'.
Move all terms containing i to the left, all other terms to the right.
Divide each side by '15'.
i2 = 0
Simplifying
i2 = 0
Take the square root of each side:
i = {0}
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