=8.5x^2-8.5x+1

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Solution for =8.5x^2-8.5x+1 equation:


Simplifying
0 = 8.5x2 + -8.5x + 1

Reorder the terms:
0 = 1 + -8.5x + 8.5x2

Solving
0 = 1 + -8.5x + 8.5x2

Solving for variable 'x'.

Combine like terms: 0 + -1 = -1
-1 + 8.5x + -8.5x2 = 1 + -8.5x + 8.5x2 + -1 + 8.5x + -8.5x2

Reorder the terms:
-1 + 8.5x + -8.5x2 = 1 + -1 + -8.5x + 8.5x + 8.5x2 + -8.5x2

Combine like terms: 1 + -1 = 0
-1 + 8.5x + -8.5x2 = 0 + -8.5x + 8.5x + 8.5x2 + -8.5x2
-1 + 8.5x + -8.5x2 = -8.5x + 8.5x + 8.5x2 + -8.5x2

Combine like terms: -8.5x + 8.5x = 0.0
-1 + 8.5x + -8.5x2 = 0.0 + 8.5x2 + -8.5x2
-1 + 8.5x + -8.5x2 = 8.5x2 + -8.5x2

Combine like terms: 8.5x2 + -8.5x2 = 0.0
-1 + 8.5x + -8.5x2 = 0.0

Begin completing the square.  Divide all terms by
-8.5 the coefficient of the squared term: 

Divide each side by '-8.5'.
0.1176470588 + -1x + x2 = 0

Move the constant term to the right:

Add '-0.1176470588' to each side of the equation.
0.1176470588 + -1x + -0.1176470588 + x2 = 0 + -0.1176470588

Reorder the terms:
0.1176470588 + -0.1176470588 + -1x + x2 = 0 + -0.1176470588

Combine like terms: 0.1176470588 + -0.1176470588 = 0.0000000000
0.0000000000 + -1x + x2 = 0 + -0.1176470588
-1x + x2 = 0 + -0.1176470588

Combine like terms: 0 + -0.1176470588 = -0.1176470588
-1x + x2 = -0.1176470588

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 = -0.1176470588 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -0.1176470588 + 0.25

Combine like terms: -0.1176470588 + 0.25 = 0.1323529412
0.25 + -1x + x2 = 0.1323529412

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 0.1323529412

Calculate the square root of the right side: 0.363803438

Break this problem into two subproblems by setting 
(x + -0.5) equal to 0.363803438 and -0.363803438.

Subproblem 1

x + -0.5 = 0.363803438 Simplifying x + -0.5 = 0.363803438 Reorder the terms: -0.5 + x = 0.363803438 Solving -0.5 + x = 0.363803438 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 = 0.363803438 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.363803438 + 0.5 x = 0.363803438 + 0.5 Combine like terms: 0.363803438 + 0.5 = 0.863803438 x = 0.863803438 Simplifying x = 0.863803438

Subproblem 2

x + -0.5 = -0.363803438 Simplifying x + -0.5 = -0.363803438 Reorder the terms: -0.5 + x = -0.363803438 Solving -0.5 + x = -0.363803438 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 = -0.363803438 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.363803438 + 0.5 x = -0.363803438 + 0.5 Combine like terms: -0.363803438 + 0.5 = 0.136196562 x = 0.136196562 Simplifying x = 0.136196562

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.863803438, 0.136196562}

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