35k^2-22k=4

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Solution for 35k^2-22k=4 equation:


Simplifying
35k2 + -22k = 4

Reorder the terms:
-22k + 35k2 = 4

Solving
-22k + 35k2 = 4

Solving for variable 'k'.

Reorder the terms:
-4 + -22k + 35k2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -22k + 35k2 = 0

Begin completing the square.  Divide all terms by
35 the coefficient of the squared term: 

Divide each side by '35'.
-0.1142857143 + -0.6285714286k + k2 = 0

Move the constant term to the right:

Add '0.1142857143' to each side of the equation.
-0.1142857143 + -0.6285714286k + 0.1142857143 + k2 = 0 + 0.1142857143

Reorder the terms:
-0.1142857143 + 0.1142857143 + -0.6285714286k + k2 = 0 + 0.1142857143

Combine like terms: -0.1142857143 + 0.1142857143 = 0.0000000000
0.0000000000 + -0.6285714286k + k2 = 0 + 0.1142857143
-0.6285714286k + k2 = 0 + 0.1142857143

Combine like terms: 0 + 0.1142857143 = 0.1142857143
-0.6285714286k + k2 = 0.1142857143

The k term is -0.6285714286k.  Take half its coefficient (-0.3142857143).
Square it (0.09877551021) and add it to both sides.

Add '0.09877551021' to each side of the equation.
-0.6285714286k + 0.09877551021 + k2 = 0.1142857143 + 0.09877551021

Reorder the terms:
0.09877551021 + -0.6285714286k + k2 = 0.1142857143 + 0.09877551021

Combine like terms: 0.1142857143 + 0.09877551021 = 0.21306122451
0.09877551021 + -0.6285714286k + k2 = 0.21306122451

Factor a perfect square on the left side:
(k + -0.3142857143)(k + -0.3142857143) = 0.21306122451

Calculate the square root of the right side: 0.461585555

Break this problem into two subproblems by setting 
(k + -0.3142857143) equal to 0.461585555 and -0.461585555.

Subproblem 1

k + -0.3142857143 = 0.461585555 Simplifying k + -0.3142857143 = 0.461585555 Reorder the terms: -0.3142857143 + k = 0.461585555 Solving -0.3142857143 + k = 0.461585555 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.3142857143' to each side of the equation. -0.3142857143 + 0.3142857143 + k = 0.461585555 + 0.3142857143 Combine like terms: -0.3142857143 + 0.3142857143 = 0.0000000000 0.0000000000 + k = 0.461585555 + 0.3142857143 k = 0.461585555 + 0.3142857143 Combine like terms: 0.461585555 + 0.3142857143 = 0.7758712693 k = 0.7758712693 Simplifying k = 0.7758712693

Subproblem 2

k + -0.3142857143 = -0.461585555 Simplifying k + -0.3142857143 = -0.461585555 Reorder the terms: -0.3142857143 + k = -0.461585555 Solving -0.3142857143 + k = -0.461585555 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.3142857143' to each side of the equation. -0.3142857143 + 0.3142857143 + k = -0.461585555 + 0.3142857143 Combine like terms: -0.3142857143 + 0.3142857143 = 0.0000000000 0.0000000000 + k = -0.461585555 + 0.3142857143 k = -0.461585555 + 0.3142857143 Combine like terms: -0.461585555 + 0.3142857143 = -0.1472998407 k = -0.1472998407 Simplifying k = -0.1472998407

Solution

The solution to the problem is based on the solutions from the subproblems. k = {0.7758712693, -0.1472998407}

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