2x(x+14)=5x+1

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Solution for 2x(x+14)=5x+1 equation:


Simplifying
2x(x + 14) = 5x + 1

Reorder the terms:
2x(14 + x) = 5x + 1
(14 * 2x + x * 2x) = 5x + 1
(28x + 2x2) = 5x + 1

Reorder the terms:
28x + 2x2 = 1 + 5x

Solving
28x + 2x2 = 1 + 5x

Solving for variable 'x'.

Reorder the terms:
-1 + 28x + -5x + 2x2 = 1 + 5x + -1 + -5x

Combine like terms: 28x + -5x = 23x
-1 + 23x + 2x2 = 1 + 5x + -1 + -5x

Reorder the terms:
-1 + 23x + 2x2 = 1 + -1 + 5x + -5x

Combine like terms: 1 + -1 = 0
-1 + 23x + 2x2 = 0 + 5x + -5x
-1 + 23x + 2x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-1 + 23x + 2x2 = 0

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

Divide each side by '2'.
-0.5 + 11.5x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 11.5x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 11.5x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 11.5x + x2 = 0 + 0.5
11.5x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
11.5x + x2 = 0.5

The x term is 11.5x.  Take half its coefficient (5.75).
Square it (33.0625) and add it to both sides.

Add '33.0625' to each side of the equation.
11.5x + 33.0625 + x2 = 0.5 + 33.0625

Reorder the terms:
33.0625 + 11.5x + x2 = 0.5 + 33.0625

Combine like terms: 0.5 + 33.0625 = 33.5625
33.0625 + 11.5x + x2 = 33.5625

Factor a perfect square on the left side:
(x + 5.75)(x + 5.75) = 33.5625

Calculate the square root of the right side: 5.793315113

Break this problem into two subproblems by setting 
(x + 5.75) equal to 5.793315113 and -5.793315113.

Subproblem 1

x + 5.75 = 5.793315113 Simplifying x + 5.75 = 5.793315113 Reorder the terms: 5.75 + x = 5.793315113 Solving 5.75 + x = 5.793315113 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.75' to each side of the equation. 5.75 + -5.75 + x = 5.793315113 + -5.75 Combine like terms: 5.75 + -5.75 = 0.00 0.00 + x = 5.793315113 + -5.75 x = 5.793315113 + -5.75 Combine like terms: 5.793315113 + -5.75 = 0.043315113 x = 0.043315113 Simplifying x = 0.043315113

Subproblem 2

x + 5.75 = -5.793315113 Simplifying x + 5.75 = -5.793315113 Reorder the terms: 5.75 + x = -5.793315113 Solving 5.75 + x = -5.793315113 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.75' to each side of the equation. 5.75 + -5.75 + x = -5.793315113 + -5.75 Combine like terms: 5.75 + -5.75 = 0.00 0.00 + x = -5.793315113 + -5.75 x = -5.793315113 + -5.75 Combine like terms: -5.793315113 + -5.75 = -11.543315113 x = -11.543315113 Simplifying x = -11.543315113

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.043315113, -11.543315113}

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