4k^2-8k-27=-6

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Solution for 4k^2-8k-27=-6 equation:


Simplifying
4k2 + -8k + -27 = -6

Reorder the terms:
-27 + -8k + 4k2 = -6

Solving
-27 + -8k + 4k2 = -6

Solving for variable 'k'.

Reorder the terms:
-27 + 6 + -8k + 4k2 = -6 + 6

Combine like terms: -27 + 6 = -21
-21 + -8k + 4k2 = -6 + 6

Combine like terms: -6 + 6 = 0
-21 + -8k + 4k2 = 0

Factor a trinomial.
(-3 + -2k)(7 + -2k) = 0

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 = -1.5

Subproblem 2

Set the factor '(7 + -2k)' equal to zero and attempt to solve: Simplifying 7 + -2k = 0 Solving 7 + -2k = 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 + -2k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2k = 0 + -7 -2k = 0 + -7 Combine like terms: 0 + -7 = -7 -2k = -7 Divide each side by '-2'. k = 3.5 Simplifying k = 3.5

Solution

k = {-1.5, 3.5}

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