-9k^2+81k=0

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Solution for -9k^2+81k=0 equation:


Simplifying
-9k2 + 81k = 0

Reorder the terms:
81k + -9k2 = 0

Solving
81k + -9k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), '9k'.
9k(9 + -1k) = 0

Ignore the factor 9.

Subproblem 1

Set the factor 'k' equal to zero and attempt to solve: Simplifying k = 0 Solving k = 0 Move all terms containing k to the left, all other terms to the right. Simplifying k = 0

Subproblem 2

Set the factor '(9 + -1k)' equal to zero and attempt to solve: Simplifying 9 + -1k = 0 Solving 9 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1k = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1k = 0 + -9 -1k = 0 + -9 Combine like terms: 0 + -9 = -9 -1k = -9 Divide each side by '-1'. k = 9 Simplifying k = 9

Solution

k = {0, 9}

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