(-7i)(-i)=

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Solution for (-7i)(-i)= equation: 


Simplifying
(-7i)(-1i) = 0

Remove parenthesis around (-7i)
-7i(-1i) = 0

Remove parenthesis around (-1i)
-7i * -1i = 0

Reorder the terms for easier multiplication:
-7 * -1i * i = 0

Multiply -7 * -1
7i * i = 0

Multiply i * i
7i2 = 0

Solving
7i2 = 0

Solving for variable 'i'.

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

Divide each side by '7'.
i2 = 0

Simplifying
i2 = 0

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

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