23423=x^2+35x+30

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Solution for 23423=x^2+35x+30 equation:


Simplifying
23423 = x2 + 35x + 30

Reorder the terms:
23423 = 30 + 35x + x2

Solving
23423 = 30 + 35x + x2

Solving for variable 'x'.

Combine like terms: 23423 + -30 = 23393
23393 + -35x + -1x2 = 30 + 35x + x2 + -30 + -35x + -1x2

Reorder the terms:
23393 + -35x + -1x2 = 30 + -30 + 35x + -35x + x2 + -1x2

Combine like terms: 30 + -30 = 0
23393 + -35x + -1x2 = 0 + 35x + -35x + x2 + -1x2
23393 + -35x + -1x2 = 35x + -35x + x2 + -1x2

Combine like terms: 35x + -35x = 0
23393 + -35x + -1x2 = 0 + x2 + -1x2
23393 + -35x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
23393 + -35x + -1x2 = 0

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

Divide each side by '-1'.
-23393 + 35x + x2 = 0

Move the constant term to the right:

Add '23393' to each side of the equation.
-23393 + 35x + 23393 + x2 = 0 + 23393

Reorder the terms:
-23393 + 23393 + 35x + x2 = 0 + 23393

Combine like terms: -23393 + 23393 = 0
0 + 35x + x2 = 0 + 23393
35x + x2 = 0 + 23393

Combine like terms: 0 + 23393 = 23393
35x + x2 = 23393

The x term is 35x.  Take half its coefficient (17.5).
Square it (306.25) and add it to both sides.

Add '306.25' to each side of the equation.
35x + 306.25 + x2 = 23393 + 306.25

Reorder the terms:
306.25 + 35x + x2 = 23393 + 306.25

Combine like terms: 23393 + 306.25 = 23699.25
306.25 + 35x + x2 = 23699.25

Factor a perfect square on the left side:
(x + 17.5)(x + 17.5) = 23699.25

Calculate the square root of the right side: 153.945607277

Break this problem into two subproblems by setting 
(x + 17.5) equal to 153.945607277 and -153.945607277.

Subproblem 1

x + 17.5 = 153.945607277 Simplifying x + 17.5 = 153.945607277 Reorder the terms: 17.5 + x = 153.945607277 Solving 17.5 + x = 153.945607277 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-17.5' to each side of the equation. 17.5 + -17.5 + x = 153.945607277 + -17.5 Combine like terms: 17.5 + -17.5 = 0.0 0.0 + x = 153.945607277 + -17.5 x = 153.945607277 + -17.5 Combine like terms: 153.945607277 + -17.5 = 136.445607277 x = 136.445607277 Simplifying x = 136.445607277

Subproblem 2

x + 17.5 = -153.945607277 Simplifying x + 17.5 = -153.945607277 Reorder the terms: 17.5 + x = -153.945607277 Solving 17.5 + x = -153.945607277 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-17.5' to each side of the equation. 17.5 + -17.5 + x = -153.945607277 + -17.5 Combine like terms: 17.5 + -17.5 = 0.0 0.0 + x = -153.945607277 + -17.5 x = -153.945607277 + -17.5 Combine like terms: -153.945607277 + -17.5 = -171.445607277 x = -171.445607277 Simplifying x = -171.445607277

Solution

The solution to the problem is based on the solutions from the subproblems. x = {136.445607277, -171.445607277}

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