(k-6)(k-2)=3

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Solution for (k-6)(k-2)=3 equation:


Simplifying
(k + -6)(k + -2) = 3

Reorder the terms:
(-6 + k)(k + -2) = 3

Reorder the terms:
(-6 + k)(-2 + k) = 3

Multiply (-6 + k) * (-2 + k)
(-6(-2 + k) + k(-2 + k)) = 3
((-2 * -6 + k * -6) + k(-2 + k)) = 3
((12 + -6k) + k(-2 + k)) = 3
(12 + -6k + (-2 * k + k * k)) = 3
(12 + -6k + (-2k + k2)) = 3

Combine like terms: -6k + -2k = -8k
(12 + -8k + k2) = 3

Solving
12 + -8k + k2 = 3

Solving for variable 'k'.

Reorder the terms:
12 + -3 + -8k + k2 = 3 + -3

Combine like terms: 12 + -3 = 9
9 + -8k + k2 = 3 + -3

Combine like terms: 3 + -3 = 0
9 + -8k + k2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -8k + -9 + k2 = 0 + -9

Reorder the terms:
9 + -9 + -8k + k2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -8k + k2 = 0 + -9
-8k + k2 = 0 + -9

Combine like terms: 0 + -9 = -9
-8k + k2 = -9

The k term is -8k.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8k + 16 + k2 = -9 + 16

Reorder the terms:
16 + -8k + k2 = -9 + 16

Combine like terms: -9 + 16 = 7
16 + -8k + k2 = 7

Factor a perfect square on the left side:
(k + -4)(k + -4) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(k + -4) equal to 2.645751311 and -2.645751311.

Subproblem 1

k + -4 = 2.645751311 Simplifying k + -4 = 2.645751311 Reorder the terms: -4 + k = 2.645751311 Solving -4 + k = 2.645751311 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + k = 2.645751311 + 4 Combine like terms: -4 + 4 = 0 0 + k = 2.645751311 + 4 k = 2.645751311 + 4 Combine like terms: 2.645751311 + 4 = 6.645751311 k = 6.645751311 Simplifying k = 6.645751311

Subproblem 2

k + -4 = -2.645751311 Simplifying k + -4 = -2.645751311 Reorder the terms: -4 + k = -2.645751311 Solving -4 + k = -2.645751311 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + k = -2.645751311 + 4 Combine like terms: -4 + 4 = 0 0 + k = -2.645751311 + 4 k = -2.645751311 + 4 Combine like terms: -2.645751311 + 4 = 1.354248689 k = 1.354248689 Simplifying k = 1.354248689

Solution

The solution to the problem is based on the solutions from the subproblems. k = {6.645751311, 1.354248689}

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