2x^2+44x+242=5x^2

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Solution for 2x^2+44x+242=5x^2 equation:


Simplifying
2x2 + 44x + 242 = 5x2

Reorder the terms:
242 + 44x + 2x2 = 5x2

Solving
242 + 44x + 2x2 = 5x2

Solving for variable 'x'.

Combine like terms: 2x2 + -5x2 = -3x2
242 + 44x + -3x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
242 + 44x + -3x2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
-80.66666667 + -14.66666667x + x2 = 0

Move the constant term to the right:

Add '80.66666667' to each side of the equation.
-80.66666667 + -14.66666667x + 80.66666667 + x2 = 0 + 80.66666667

Reorder the terms:
-80.66666667 + 80.66666667 + -14.66666667x + x2 = 0 + 80.66666667

Combine like terms: -80.66666667 + 80.66666667 = 0.00000000
0.00000000 + -14.66666667x + x2 = 0 + 80.66666667
-14.66666667x + x2 = 0 + 80.66666667

Combine like terms: 0 + 80.66666667 = 80.66666667
-14.66666667x + x2 = 80.66666667

The x term is -14.66666667x.  Take half its coefficient (-7.333333335).
Square it (53.77777780) and add it to both sides.

Add '53.77777780' to each side of the equation.
-14.66666667x + 53.77777780 + x2 = 80.66666667 + 53.77777780

Reorder the terms:
53.77777780 + -14.66666667x + x2 = 80.66666667 + 53.77777780

Combine like terms: 80.66666667 + 53.77777780 = 134.44444447
53.77777780 + -14.66666667x + x2 = 134.44444447

Factor a perfect square on the left side:
(x + -7.333333335)(x + -7.333333335) = 134.44444447

Calculate the square root of the right side: 11.595018088

Break this problem into two subproblems by setting 
(x + -7.333333335) equal to 11.595018088 and -11.595018088.

Subproblem 1

x + -7.333333335 = 11.595018088 Simplifying x + -7.333333335 = 11.595018088 Reorder the terms: -7.333333335 + x = 11.595018088 Solving -7.333333335 + x = 11.595018088 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.333333335' to each side of the equation. -7.333333335 + 7.333333335 + x = 11.595018088 + 7.333333335 Combine like terms: -7.333333335 + 7.333333335 = 0.000000000 0.000000000 + x = 11.595018088 + 7.333333335 x = 11.595018088 + 7.333333335 Combine like terms: 11.595018088 + 7.333333335 = 18.928351423 x = 18.928351423 Simplifying x = 18.928351423

Subproblem 2

x + -7.333333335 = -11.595018088 Simplifying x + -7.333333335 = -11.595018088 Reorder the terms: -7.333333335 + x = -11.595018088 Solving -7.333333335 + x = -11.595018088 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.333333335' to each side of the equation. -7.333333335 + 7.333333335 + x = -11.595018088 + 7.333333335 Combine like terms: -7.333333335 + 7.333333335 = 0.000000000 0.000000000 + x = -11.595018088 + 7.333333335 x = -11.595018088 + 7.333333335 Combine like terms: -11.595018088 + 7.333333335 = -4.261684753 x = -4.261684753 Simplifying x = -4.261684753

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.928351423, -4.261684753}

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