=7.6x^2-7.6x+1

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Solution for =7.6x^2-7.6x+1 equation:


Simplifying
0 = 7.6x2 + -7.6x + 1

Reorder the terms:
0 = 1 + -7.6x + 7.6x2

Solving
0 = 1 + -7.6x + 7.6x2

Solving for variable 'x'.

Combine like terms: 0 + -1 = -1
-1 + 7.6x + -7.6x2 = 1 + -7.6x + 7.6x2 + -1 + 7.6x + -7.6x2

Reorder the terms:
-1 + 7.6x + -7.6x2 = 1 + -1 + -7.6x + 7.6x + 7.6x2 + -7.6x2

Combine like terms: 1 + -1 = 0
-1 + 7.6x + -7.6x2 = 0 + -7.6x + 7.6x + 7.6x2 + -7.6x2
-1 + 7.6x + -7.6x2 = -7.6x + 7.6x + 7.6x2 + -7.6x2

Combine like terms: -7.6x + 7.6x = 0.0
-1 + 7.6x + -7.6x2 = 0.0 + 7.6x2 + -7.6x2
-1 + 7.6x + -7.6x2 = 7.6x2 + -7.6x2

Combine like terms: 7.6x2 + -7.6x2 = 0.0
-1 + 7.6x + -7.6x2 = 0.0

Begin completing the square.  Divide all terms by
-7.6 the coefficient of the squared term: 

Divide each side by '-7.6'.
0.1315789474 + -1x + x2 = 0

Move the constant term to the right:

Add '-0.1315789474' to each side of the equation.
0.1315789474 + -1x + -0.1315789474 + x2 = 0 + -0.1315789474

Reorder the terms:
0.1315789474 + -0.1315789474 + -1x + x2 = 0 + -0.1315789474

Combine like terms: 0.1315789474 + -0.1315789474 = 0.0000000000
0.0000000000 + -1x + x2 = 0 + -0.1315789474
-1x + x2 = 0 + -0.1315789474

Combine like terms: 0 + -0.1315789474 = -0.1315789474
-1x + x2 = -0.1315789474

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -0.1315789474 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -0.1315789474 + 0.25

Combine like terms: -0.1315789474 + 0.25 = 0.1184210526
0.25 + -1x + x2 = 0.1184210526

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 0.1184210526

Calculate the square root of the right side: 0.344123601

Break this problem into two subproblems by setting 
(x + -0.5) equal to 0.344123601 and -0.344123601.

Subproblem 1

x + -0.5 = 0.344123601 Simplifying x + -0.5 = 0.344123601 Reorder the terms: -0.5 + x = 0.344123601 Solving -0.5 + x = 0.344123601 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 0.344123601 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.344123601 + 0.5 x = 0.344123601 + 0.5 Combine like terms: 0.344123601 + 0.5 = 0.844123601 x = 0.844123601 Simplifying x = 0.844123601

Subproblem 2

x + -0.5 = -0.344123601 Simplifying x + -0.5 = -0.344123601 Reorder the terms: -0.5 + x = -0.344123601 Solving -0.5 + x = -0.344123601 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -0.344123601 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.344123601 + 0.5 x = -0.344123601 + 0.5 Combine like terms: -0.344123601 + 0.5 = 0.155876399 x = 0.155876399 Simplifying x = 0.155876399

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.844123601, 0.155876399}

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