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Simplifying (4k + -7)(4k + -6) = 0 Reorder the terms: (-7 + 4k)(4k + -6) = 0 Reorder the terms: (-7 + 4k)(-6 + 4k) = 0 Multiply (-7 + 4k) * (-6 + 4k) (-7(-6 + 4k) + 4k * (-6 + 4k)) = 0 ((-6 * -7 + 4k * -7) + 4k * (-6 + 4k)) = 0 ((42 + -28k) + 4k * (-6 + 4k)) = 0 (42 + -28k + (-6 * 4k + 4k * 4k)) = 0 (42 + -28k + (-24k + 16k2)) = 0 Combine like terms: -28k + -24k = -52k (42 + -52k + 16k2) = 0 Solving 42 + -52k + 16k2 = 0 Solving for variable 'k'. Factor out the Greatest Common Factor (GCF), '2'. 2(21 + -26k + 8k2) = 0 Factor a trinomial. 2((3 + -2k)(7 + -4k)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(3 + -2k)' equal to zero and attempt to solve: Simplifying 3 + -2k = 0 Solving 3 + -2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2k = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2k = 0 + -3 -2k = 0 + -3 Combine like terms: 0 + -3 = -3 -2k = -3 Divide each side by '-2'. k = 1.5 Simplifying k = 1.5Subproblem 2
Set the factor '(7 + -4k)' equal to zero and attempt to solve: Simplifying 7 + -4k = 0 Solving 7 + -4k = 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 + -4k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4k = 0 + -7 -4k = 0 + -7 Combine like terms: 0 + -7 = -7 -4k = -7 Divide each side by '-4'. k = 1.75 Simplifying k = 1.75Solution
k = {1.5, 1.75}
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