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Simplifying 3k2 + -7 = 20k Reorder the terms: -7 + 3k2 = 20k Solving -7 + 3k2 = 20k Solving for variable 'k'. Reorder the terms: -7 + -20k + 3k2 = 20k + -20k Combine like terms: 20k + -20k = 0 -7 + -20k + 3k2 = 0 Factor a trinomial. (-1 + -3k)(7 + -1k) = 0Subproblem 1
Set the factor '(-1 + -3k)' equal to zero and attempt to solve: Simplifying -1 + -3k = 0 Solving -1 + -3k = 0 Move all terms containing k to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -3k = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3k = 0 + 1 -3k = 0 + 1 Combine like terms: 0 + 1 = 1 -3k = 1 Divide each side by '-3'. k = -0.3333333333 Simplifying k = -0.3333333333Subproblem 2
Set the factor '(7 + -1k)' equal to zero and attempt to solve: Simplifying 7 + -1k = 0 Solving 7 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1k = 0 + -7 -1k = 0 + -7 Combine like terms: 0 + -7 = -7 -1k = -7 Divide each side by '-1'. k = 7 Simplifying k = 7Solution
k = {-0.3333333333, 7}
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