x*x-x=14.5

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Solution for x*x-x=14.5 equation:


Simplifying
x * x + -1x = 14.5

Multiply x * x
x2 + -1x = 14.5

Reorder the terms:
-1x + x2 = 14.5

Solving
-1x + x2 = 14.5

Solving for variable 'x'.

Reorder the terms:
-14.5 + -1x + x2 = 14.5 + -14.5

Combine like terms: 14.5 + -14.5 = 0.0
-14.5 + -1x + x2 = 0.0

Begin completing the square.

Move the constant term to the right:

Add '14.5' to each side of the equation.
-14.5 + -1x + 14.5 + x2 = 0.0 + 14.5

Reorder the terms:
-14.5 + 14.5 + -1x + x2 = 0.0 + 14.5

Combine like terms: -14.5 + 14.5 = 0.0
0.0 + -1x + x2 = 0.0 + 14.5
-1x + x2 = 0.0 + 14.5

Combine like terms: 0.0 + 14.5 = 14.5
-1x + x2 = 14.5

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 = 14.5 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 14.5 + 0.25

Combine like terms: 14.5 + 0.25 = 14.75
0.25 + -1x + x2 = 14.75

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 14.75

Calculate the square root of the right side: 3.840572874

Break this problem into two subproblems by setting 
(x + -0.5) equal to 3.840572874 and -3.840572874.

Subproblem 1

x + -0.5 = 3.840572874 Simplifying x + -0.5 = 3.840572874 Reorder the terms: -0.5 + x = 3.840572874 Solving -0.5 + x = 3.840572874 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 = 3.840572874 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 3.840572874 + 0.5 x = 3.840572874 + 0.5 Combine like terms: 3.840572874 + 0.5 = 4.340572874 x = 4.340572874 Simplifying x = 4.340572874

Subproblem 2

x + -0.5 = -3.840572874 Simplifying x + -0.5 = -3.840572874 Reorder the terms: -0.5 + x = -3.840572874 Solving -0.5 + x = -3.840572874 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 = -3.840572874 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -3.840572874 + 0.5 x = -3.840572874 + 0.5 Combine like terms: -3.840572874 + 0.5 = -3.340572874 x = -3.340572874 Simplifying x = -3.340572874

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.340572874, -3.340572874}

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