5i(-i)=

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Solution for 5i(-i)= equation: 


Simplifying
5i(-1i) = 0

Remove parenthesis around (-1i)
5i * -1i = 0

Reorder the terms for easier multiplication:
5 * -1i * i = 0

Multiply 5 * -1
-5i * i = 0

Multiply i * i
-5i2 = 0

Solving
-5i2 = 0

Solving for variable 'i'.

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

Divide each side by '-5'.
i2 = 0

Simplifying
i2 = 0

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

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