x^2-13x+36=2x^2-16+32

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Solution for x^2-13x+36=2x^2-16+32 equation:


Simplifying
x2 + -13x + 36 = 2x2 + -16 + 32

Reorder the terms:
36 + -13x + x2 = 2x2 + -16 + 32

Reorder the terms:
36 + -13x + x2 = -16 + 32 + 2x2

Combine like terms: -16 + 32 = 16
36 + -13x + x2 = 16 + 2x2

Solving
36 + -13x + x2 = 16 + 2x2

Solving for variable 'x'.

Reorder the terms:
36 + -16 + -13x + x2 + -2x2 = 16 + 2x2 + -16 + -2x2

Combine like terms: 36 + -16 = 20
20 + -13x + x2 + -2x2 = 16 + 2x2 + -16 + -2x2

Combine like terms: x2 + -2x2 = -1x2
20 + -13x + -1x2 = 16 + 2x2 + -16 + -2x2

Reorder the terms:
20 + -13x + -1x2 = 16 + -16 + 2x2 + -2x2

Combine like terms: 16 + -16 = 0
20 + -13x + -1x2 = 0 + 2x2 + -2x2
20 + -13x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
20 + -13x + -1x2 = 0

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

Divide each side by '-1'.
-20 + 13x + x2 = 0

Move the constant term to the right:

Add '20' to each side of the equation.
-20 + 13x + 20 + x2 = 0 + 20

Reorder the terms:
-20 + 20 + 13x + x2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 13x + x2 = 0 + 20
13x + x2 = 0 + 20

Combine like terms: 0 + 20 = 20
13x + x2 = 20

The x term is 13x.  Take half its coefficient (6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
13x + 42.25 + x2 = 20 + 42.25

Reorder the terms:
42.25 + 13x + x2 = 20 + 42.25

Combine like terms: 20 + 42.25 = 62.25
42.25 + 13x + x2 = 62.25

Factor a perfect square on the left side:
(x + 6.5)(x + 6.5) = 62.25

Calculate the square root of the right side: 7.889866919

Break this problem into two subproblems by setting 
(x + 6.5) equal to 7.889866919 and -7.889866919.

Subproblem 1

x + 6.5 = 7.889866919 Simplifying x + 6.5 = 7.889866919 Reorder the terms: 6.5 + x = 7.889866919 Solving 6.5 + x = 7.889866919 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = 7.889866919 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = 7.889866919 + -6.5 x = 7.889866919 + -6.5 Combine like terms: 7.889866919 + -6.5 = 1.389866919 x = 1.389866919 Simplifying x = 1.389866919

Subproblem 2

x + 6.5 = -7.889866919 Simplifying x + 6.5 = -7.889866919 Reorder the terms: 6.5 + x = -7.889866919 Solving 6.5 + x = -7.889866919 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = -7.889866919 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = -7.889866919 + -6.5 x = -7.889866919 + -6.5 Combine like terms: -7.889866919 + -6.5 = -14.389866919 x = -14.389866919 Simplifying x = -14.389866919

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.389866919, -14.389866919}

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