k^2-20k+32=0

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Solution for k^2-20k+32=0 equation:


Simplifying
k2 + -20k + 32 = 0

Reorder the terms:
32 + -20k + k2 = 0

Solving
32 + -20k + k2 = 0

Solving for variable 'k'.

Begin completing the square.

Move the constant term to the right:

Add '-32' to each side of the equation.
32 + -20k + -32 + k2 = 0 + -32

Reorder the terms:
32 + -32 + -20k + k2 = 0 + -32

Combine like terms: 32 + -32 = 0
0 + -20k + k2 = 0 + -32
-20k + k2 = 0 + -32

Combine like terms: 0 + -32 = -32
-20k + k2 = -32

The k term is -20k.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20k + 100 + k2 = -32 + 100

Reorder the terms:
100 + -20k + k2 = -32 + 100

Combine like terms: -32 + 100 = 68
100 + -20k + k2 = 68

Factor a perfect square on the left side:
(k + -10)(k + -10) = 68

Calculate the square root of the right side: 8.246211251

Break this problem into two subproblems by setting 
(k + -10) equal to 8.246211251 and -8.246211251.

Subproblem 1

k + -10 = 8.246211251 Simplifying k + -10 = 8.246211251 Reorder the terms: -10 + k = 8.246211251 Solving -10 + k = 8.246211251 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + k = 8.246211251 + 10 Combine like terms: -10 + 10 = 0 0 + k = 8.246211251 + 10 k = 8.246211251 + 10 Combine like terms: 8.246211251 + 10 = 18.246211251 k = 18.246211251 Simplifying k = 18.246211251

Subproblem 2

k + -10 = -8.246211251 Simplifying k + -10 = -8.246211251 Reorder the terms: -10 + k = -8.246211251 Solving -10 + k = -8.246211251 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + k = -8.246211251 + 10 Combine like terms: -10 + 10 = 0 0 + k = -8.246211251 + 10 k = -8.246211251 + 10 Combine like terms: -8.246211251 + 10 = 1.753788749 k = 1.753788749 Simplifying k = 1.753788749

Solution

The solution to the problem is based on the solutions from the subproblems. k = {18.246211251, 1.753788749}

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