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Simplifying 15k2 + 26k + 7 = 0 Reorder the terms: 7 + 26k + 15k2 = 0 Solving 7 + 26k + 15k2 = 0 Solving for variable 'k'. Factor a trinomial. (7 + 5k)(1 + 3k) = 0Subproblem 1
Set the factor '(7 + 5k)' equal to zero and attempt to solve: Simplifying 7 + 5k = 0 Solving 7 + 5k = 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 + 5k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 5k = 0 + -7 5k = 0 + -7 Combine like terms: 0 + -7 = -7 5k = -7 Divide each side by '5'. k = -1.4 Simplifying k = -1.4Subproblem 2
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 = -0.3333333333Solution
k = {-1.4, -0.3333333333}
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