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Simplifying k2 + 10k + -56 = 0 Reorder the terms: -56 + 10k + k2 = 0 Solving -56 + 10k + k2 = 0 Solving for variable 'k'. Factor a trinomial. (-14 + -1k)(4 + -1k) = 0Subproblem 1
Set the factor '(-14 + -1k)' equal to zero and attempt to solve: Simplifying -14 + -1k = 0 Solving -14 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1k = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1k = 0 + 14 -1k = 0 + 14 Combine like terms: 0 + 14 = 14 -1k = 14 Divide each side by '-1'. k = -14 Simplifying k = -14Subproblem 2
Set the factor '(4 + -1k)' equal to zero and attempt to solve: Simplifying 4 + -1k = 0 Solving 4 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1k = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1k = 0 + -4 -1k = 0 + -4 Combine like terms: 0 + -4 = -4 -1k = -4 Divide each side by '-1'. k = 4 Simplifying k = 4Solution
k = {-14, 4}
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