5.4x^2-125x-250=0

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Solution for 5.4x^2-125x-250=0 equation:


Simplifying
5.4x2 + -125x + -250 = 0

Reorder the terms:
-250 + -125x + 5.4x2 = 0

Solving
-250 + -125x + 5.4x2 = 0

Solving for variable 'x'.

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

Divide each side by '5.4'.
-46.2962963 + -23.14814815x + x2 = 0

Move the constant term to the right:

Add '46.2962963' to each side of the equation.
-46.2962963 + -23.14814815x + 46.2962963 + x2 = 0 + 46.2962963

Reorder the terms:
-46.2962963 + 46.2962963 + -23.14814815x + x2 = 0 + 46.2962963

Combine like terms: -46.2962963 + 46.2962963 = 0.0000000
0.0000000 + -23.14814815x + x2 = 0 + 46.2962963
-23.14814815x + x2 = 0 + 46.2962963

Combine like terms: 0 + 46.2962963 = 46.2962963
-23.14814815x + x2 = 46.2962963

The x term is -23.14814815x.  Take half its coefficient (-11.57407408).
Square it (133.9591908) and add it to both sides.

Add '133.9591908' to each side of the equation.
-23.14814815x + 133.9591908 + x2 = 46.2962963 + 133.9591908

Reorder the terms:
133.9591908 + -23.14814815x + x2 = 46.2962963 + 133.9591908

Combine like terms: 46.2962963 + 133.9591908 = 180.2554871
133.9591908 + -23.14814815x + x2 = 180.2554871

Factor a perfect square on the left side:
(x + -11.57407408)(x + -11.57407408) = 180.2554871

Calculate the square root of the right side: 13.425925931

Break this problem into two subproblems by setting 
(x + -11.57407408) equal to 13.425925931 and -13.425925931.

Subproblem 1

x + -11.57407408 = 13.425925931 Simplifying x + -11.57407408 = 13.425925931 Reorder the terms: -11.57407408 + x = 13.425925931 Solving -11.57407408 + x = 13.425925931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.57407408' to each side of the equation. -11.57407408 + 11.57407408 + x = 13.425925931 + 11.57407408 Combine like terms: -11.57407408 + 11.57407408 = 0.00000000 0.00000000 + x = 13.425925931 + 11.57407408 x = 13.425925931 + 11.57407408 Combine like terms: 13.425925931 + 11.57407408 = 25.000000011 x = 25.000000011 Simplifying x = 25.000000011

Subproblem 2

x + -11.57407408 = -13.425925931 Simplifying x + -11.57407408 = -13.425925931 Reorder the terms: -11.57407408 + x = -13.425925931 Solving -11.57407408 + x = -13.425925931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.57407408' to each side of the equation. -11.57407408 + 11.57407408 + x = -13.425925931 + 11.57407408 Combine like terms: -11.57407408 + 11.57407408 = 0.00000000 0.00000000 + x = -13.425925931 + 11.57407408 x = -13.425925931 + 11.57407408 Combine like terms: -13.425925931 + 11.57407408 = -1.851851851 x = -1.851851851 Simplifying x = -1.851851851

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.000000011, -1.851851851}

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