x^2=23(x+11)

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Solution for x^2=23(x+11) equation:


Simplifying
x2 = 23(x + 11)

Reorder the terms:
x2 = 23(11 + x)
x2 = (11 * 23 + x * 23)
x2 = (253 + 23x)

Solving
x2 = 253 + 23x

Solving for variable 'x'.

Reorder the terms:
-253 + -23x + x2 = 253 + 23x + -253 + -23x

Reorder the terms:
-253 + -23x + x2 = 253 + -253 + 23x + -23x

Combine like terms: 253 + -253 = 0
-253 + -23x + x2 = 0 + 23x + -23x
-253 + -23x + x2 = 23x + -23x

Combine like terms: 23x + -23x = 0
-253 + -23x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '253' to each side of the equation.
-253 + -23x + 253 + x2 = 0 + 253

Reorder the terms:
-253 + 253 + -23x + x2 = 0 + 253

Combine like terms: -253 + 253 = 0
0 + -23x + x2 = 0 + 253
-23x + x2 = 0 + 253

Combine like terms: 0 + 253 = 253
-23x + x2 = 253

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 = 253 + 132.25

Reorder the terms:
132.25 + -23x + x2 = 253 + 132.25

Combine like terms: 253 + 132.25 = 385.25
132.25 + -23x + x2 = 385.25

Factor a perfect square on the left side:
(x + -11.5)(x + -11.5) = 385.25

Calculate the square root of the right side: 19.627786426

Break this problem into two subproblems by setting 
(x + -11.5) equal to 19.627786426 and -19.627786426.

Subproblem 1

x + -11.5 = 19.627786426 Simplifying x + -11.5 = 19.627786426 Reorder the terms: -11.5 + x = 19.627786426 Solving -11.5 + x = 19.627786426 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 = 19.627786426 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + x = 19.627786426 + 11.5 x = 19.627786426 + 11.5 Combine like terms: 19.627786426 + 11.5 = 31.127786426 x = 31.127786426 Simplifying x = 31.127786426

Subproblem 2

x + -11.5 = -19.627786426 Simplifying x + -11.5 = -19.627786426 Reorder the terms: -11.5 + x = -19.627786426 Solving -11.5 + x = -19.627786426 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 = -19.627786426 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + x = -19.627786426 + 11.5 x = -19.627786426 + 11.5 Combine like terms: -19.627786426 + 11.5 = -8.127786426 x = -8.127786426 Simplifying x = -8.127786426

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.127786426, -8.127786426}

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