-2k^2+8k-12=-4

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Solution for -2k^2+8k-12=-4 equation:


Simplifying
-2k2 + 8k + -12 = -4

Reorder the terms:
-12 + 8k + -2k2 = -4

Solving
-12 + 8k + -2k2 = -4

Solving for variable 'k'.

Reorder the terms:
-12 + 4 + 8k + -2k2 = -4 + 4

Combine like terms: -12 + 4 = -8
-8 + 8k + -2k2 = -4 + 4

Combine like terms: -4 + 4 = 0
-8 + 8k + -2k2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-4 + 4k + -1k2) = 0

Factor a trinomial.
2((-2 + k)(2 + -1k)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + k)' equal to zero and attempt to solve: Simplifying -2 + k = 0 Solving -2 + k = 0 Move all terms containing k to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + k = 0 + 2 Combine like terms: -2 + 2 = 0 0 + k = 0 + 2 k = 0 + 2 Combine like terms: 0 + 2 = 2 k = 2 Simplifying k = 2

Subproblem 2

Set the factor '(2 + -1k)' equal to zero and attempt to solve: Simplifying 2 + -1k = 0 Solving 2 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1k = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1k = 0 + -2 -1k = 0 + -2 Combine like terms: 0 + -2 = -2 -1k = -2 Divide each side by '-1'. k = 2 Simplifying k = 2

Solution

k = {2, 2}

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