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Simplifying
4i * 5i = 0
Reorder the terms for easier multiplication:
4 * 5i * i = 0
Multiply 4 * 5
20i * i = 0
Multiply i * i
20i2 = 0
Solving
20i2 = 0
Solving for variable 'i'.
Move all terms containing i to the left, all other terms to the right.
Divide each side by '20'.
i2 = 0.0
Simplifying
i2 = 0.0
Take the square root of each side:
i = {0.0}
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