2k^2=-8k+64

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Solution for 2k^2=-8k+64 equation:


Simplifying
2k2 = -8k + 64

Reorder the terms:
2k2 = 64 + -8k

Solving
2k2 = 64 + -8k

Solving for variable 'k'.

Reorder the terms:
-64 + 8k + 2k2 = 64 + -8k + -64 + 8k

Reorder the terms:
-64 + 8k + 2k2 = 64 + -64 + -8k + 8k

Combine like terms: 64 + -64 = 0
-64 + 8k + 2k2 = 0 + -8k + 8k
-64 + 8k + 2k2 = -8k + 8k

Combine like terms: -8k + 8k = 0
-64 + 8k + 2k2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-32 + 4k + k2) = 0

Factor a trinomial.
2((-8 + -1k)(4 + -1k)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-8 + -1k)' equal to zero and attempt to solve: Simplifying -8 + -1k = 0 Solving -8 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -1k = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -1k = 0 + 8 -1k = 0 + 8 Combine like terms: 0 + 8 = 8 -1k = 8 Divide each side by '-1'. k = -8 Simplifying k = -8

Subproblem 2

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

Solution

k = {-8, 4}

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