x^2=14x-16

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Solution for x^2=14x-16 equation:


Simplifying
x2 = 14x + -16

Reorder the terms:
x2 = -16 + 14x

Solving
x2 = -16 + 14x

Solving for variable 'x'.

Reorder the terms:
16 + -14x + x2 = -16 + 14x + 16 + -14x

Reorder the terms:
16 + -14x + x2 = -16 + 16 + 14x + -14x

Combine like terms: -16 + 16 = 0
16 + -14x + x2 = 0 + 14x + -14x
16 + -14x + x2 = 14x + -14x

Combine like terms: 14x + -14x = 0
16 + -14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + -14x + -16 + x2 = 0 + -16

Reorder the terms:
16 + -16 + -14x + x2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -14x + x2 = 0 + -16
-14x + x2 = 0 + -16

Combine like terms: 0 + -16 = -16
-14x + x2 = -16

The x term is -14x.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14x + 49 + x2 = -16 + 49

Reorder the terms:
49 + -14x + x2 = -16 + 49

Combine like terms: -16 + 49 = 33
49 + -14x + x2 = 33

Factor a perfect square on the left side:
(x + -7)(x + -7) = 33

Calculate the square root of the right side: 5.744562647

Break this problem into two subproblems by setting 
(x + -7) equal to 5.744562647 and -5.744562647.

Subproblem 1

x + -7 = 5.744562647 Simplifying x + -7 = 5.744562647 Reorder the terms: -7 + x = 5.744562647 Solving -7 + x = 5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 5.744562647 + 7 Combine like terms: -7 + 7 = 0 0 + x = 5.744562647 + 7 x = 5.744562647 + 7 Combine like terms: 5.744562647 + 7 = 12.744562647 x = 12.744562647 Simplifying x = 12.744562647

Subproblem 2

x + -7 = -5.744562647 Simplifying x + -7 = -5.744562647 Reorder the terms: -7 + x = -5.744562647 Solving -7 + x = -5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = -5.744562647 + 7 Combine like terms: -7 + 7 = 0 0 + x = -5.744562647 + 7 x = -5.744562647 + 7 Combine like terms: -5.744562647 + 7 = 1.255437353 x = 1.255437353 Simplifying x = 1.255437353

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.744562647, 1.255437353}

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