x^2+23x+34=45

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Solution for x^2+23x+34=45 equation:


Simplifying
x2 + 23x + 34 = 45

Reorder the terms:
34 + 23x + x2 = 45

Solving
34 + 23x + x2 = 45

Solving for variable 'x'.

Reorder the terms:
34 + -45 + 23x + x2 = 45 + -45

Combine like terms: 34 + -45 = -11
-11 + 23x + x2 = 45 + -45

Combine like terms: 45 + -45 = 0
-11 + 23x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 23x + 11 + x2 = 0 + 11

Reorder the terms:
-11 + 11 + 23x + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 23x + x2 = 0 + 11
23x + x2 = 0 + 11

Combine like terms: 0 + 11 = 11
23x + x2 = 11

The x term is 23x.  Take half its coefficient (11.5).
Square it (132.25) and add it to both sides.

Add '132.25' to each side of the equation.
23x + 132.25 + x2 = 11 + 132.25

Reorder the terms:
132.25 + 23x + x2 = 11 + 132.25

Combine like terms: 11 + 132.25 = 143.25
132.25 + 23x + x2 = 143.25

Factor a perfect square on the left side:
(x + 11.5)(x + 11.5) = 143.25

Calculate the square root of the right side: 11.968709204

Break this problem into two subproblems by setting 
(x + 11.5) equal to 11.968709204 and -11.968709204.

Subproblem 1

x + 11.5 = 11.968709204 Simplifying x + 11.5 = 11.968709204 Reorder the terms: 11.5 + x = 11.968709204 Solving 11.5 + x = 11.968709204 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.5' to each side of the equation. 11.5 + -11.5 + x = 11.968709204 + -11.5 Combine like terms: 11.5 + -11.5 = 0.0 0.0 + x = 11.968709204 + -11.5 x = 11.968709204 + -11.5 Combine like terms: 11.968709204 + -11.5 = 0.468709204 x = 0.468709204 Simplifying x = 0.468709204

Subproblem 2

x + 11.5 = -11.968709204 Simplifying x + 11.5 = -11.968709204 Reorder the terms: 11.5 + x = -11.968709204 Solving 11.5 + x = -11.968709204 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.5' to each side of the equation. 11.5 + -11.5 + x = -11.968709204 + -11.5 Combine like terms: 11.5 + -11.5 = 0.0 0.0 + x = -11.968709204 + -11.5 x = -11.968709204 + -11.5 Combine like terms: -11.968709204 + -11.5 = -23.468709204 x = -23.468709204 Simplifying x = -23.468709204

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.468709204, -23.468709204}

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