x=x^2-14x+49

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Solution for x=x^2-14x+49 equation:


Simplifying
x = x2 + -14x + 49

Reorder the terms:
x = 49 + -14x + x2

Solving
x = 49 + -14x + x2

Solving for variable 'x'.

Reorder the terms:
-49 + x + 14x + -1x2 = 49 + -14x + x2 + -49 + 14x + -1x2

Combine like terms: x + 14x = 15x
-49 + 15x + -1x2 = 49 + -14x + x2 + -49 + 14x + -1x2

Reorder the terms:
-49 + 15x + -1x2 = 49 + -49 + -14x + 14x + x2 + -1x2

Combine like terms: 49 + -49 = 0
-49 + 15x + -1x2 = 0 + -14x + 14x + x2 + -1x2
-49 + 15x + -1x2 = -14x + 14x + x2 + -1x2

Combine like terms: -14x + 14x = 0
-49 + 15x + -1x2 = 0 + x2 + -1x2
-49 + 15x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-49 + 15x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
49 + -15x + x2 = 0

Move the constant term to the right:

Add '-49' to each side of the equation.
49 + -15x + -49 + x2 = 0 + -49

Reorder the terms:
49 + -49 + -15x + x2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + -15x + x2 = 0 + -49
-15x + x2 = 0 + -49

Combine like terms: 0 + -49 = -49
-15x + x2 = -49

The x term is -15x.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15x + 56.25 + x2 = -49 + 56.25

Reorder the terms:
56.25 + -15x + x2 = -49 + 56.25

Combine like terms: -49 + 56.25 = 7.25
56.25 + -15x + x2 = 7.25

Factor a perfect square on the left side:
(x + -7.5)(x + -7.5) = 7.25

Calculate the square root of the right side: 2.692582404

Break this problem into two subproblems by setting 
(x + -7.5) equal to 2.692582404 and -2.692582404.

Subproblem 1

x + -7.5 = 2.692582404 Simplifying x + -7.5 = 2.692582404 Reorder the terms: -7.5 + x = 2.692582404 Solving -7.5 + x = 2.692582404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 2.692582404 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 2.692582404 + 7.5 x = 2.692582404 + 7.5 Combine like terms: 2.692582404 + 7.5 = 10.192582404 x = 10.192582404 Simplifying x = 10.192582404

Subproblem 2

x + -7.5 = -2.692582404 Simplifying x + -7.5 = -2.692582404 Reorder the terms: -7.5 + x = -2.692582404 Solving -7.5 + x = -2.692582404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = -2.692582404 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = -2.692582404 + 7.5 x = -2.692582404 + 7.5 Combine like terms: -2.692582404 + 7.5 = 4.807417596 x = 4.807417596 Simplifying x = 4.807417596

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.192582404, 4.807417596}

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