7k^2=12+8k

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Solution for 7k^2=12+8k equation:


Simplifying
7k2 = 12 + 8k

Solving
7k2 = 12 + 8k

Solving for variable 'k'.

Reorder the terms:
-12 + -8k + 7k2 = 12 + 8k + -12 + -8k

Reorder the terms:
-12 + -8k + 7k2 = 12 + -12 + 8k + -8k

Combine like terms: 12 + -12 = 0
-12 + -8k + 7k2 = 0 + 8k + -8k
-12 + -8k + 7k2 = 8k + -8k

Combine like terms: 8k + -8k = 0
-12 + -8k + 7k2 = 0

Factor a trinomial.
(-6 + -7k)(2 + -1k) = 0

Subproblem 1

Set the factor '(-6 + -7k)' equal to zero and attempt to solve: Simplifying -6 + -7k = 0 Solving -6 + -7k = 0 Move all terms containing k to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -7k = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -7k = 0 + 6 -7k = 0 + 6 Combine like terms: 0 + 6 = 6 -7k = 6 Divide each side by '-7'. k = -0.8571428571 Simplifying k = -0.8571428571

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 = {-0.8571428571, 2}

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