4k^2+8k+4-8k^2+28=0

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Solution for 4k^2+8k+4-8k^2+28=0 equation:


Simplifying
4k2 + 8k + 4 + -8k2 + 28 = 0

Reorder the terms:
4 + 28 + 8k + 4k2 + -8k2 = 0

Combine like terms: 4 + 28 = 32
32 + 8k + 4k2 + -8k2 = 0

Combine like terms: 4k2 + -8k2 = -4k2
32 + 8k + -4k2 = 0

Solving
32 + 8k + -4k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), '4'.
4(8 + 2k + -1k2) = 0

Factor a trinomial.
4((4 + -1k)(2 + k)) = 0

Ignore the factor 4.

Subproblem 1

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 = 4

Subproblem 2

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

Solution

k = {4, -2}

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