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Simplifying
4k * 5k = 0
Reorder the terms for easier multiplication:
4 * 5k * k = 0
Multiply 4 * 5
20k * k = 0
Multiply k * k
20k2 = 0
Solving
20k2 = 0
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Divide each side by '20'.
k2 = 0.0
Simplifying
k2 = 0.0
Take the square root of each side:
k = {0.0}
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