9x^2-1200x+5440=0

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Solution for 9x^2-1200x+5440=0 equation:


Simplifying
9x2 + -1200x + 5440 = 0

Reorder the terms:
5440 + -1200x + 9x2 = 0

Solving
5440 + -1200x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
604.4444444 + -133.3333333x + x2 = 0

Move the constant term to the right:

Add '-604.4444444' to each side of the equation.
604.4444444 + -133.3333333x + -604.4444444 + x2 = 0 + -604.4444444

Reorder the terms:
604.4444444 + -604.4444444 + -133.3333333x + x2 = 0 + -604.4444444

Combine like terms: 604.4444444 + -604.4444444 = 0.0000000
0.0000000 + -133.3333333x + x2 = 0 + -604.4444444
-133.3333333x + x2 = 0 + -604.4444444

Combine like terms: 0 + -604.4444444 = -604.4444444
-133.3333333x + x2 = -604.4444444

The x term is -133.3333333x.  Take half its coefficient (-66.66666665).
Square it (4444.444442) and add it to both sides.

Add '4444.444442' to each side of the equation.
-133.3333333x + 4444.444442 + x2 = -604.4444444 + 4444.444442

Reorder the terms:
4444.444442 + -133.3333333x + x2 = -604.4444444 + 4444.444442

Combine like terms: -604.4444444 + 4444.444442 = 3839.9999976
4444.444442 + -133.3333333x + x2 = 3839.9999976

Factor a perfect square on the left side:
(x + -66.66666665)(x + -66.66666665) = 3839.9999976

Calculate the square root of the right side: 61.96773352

Break this problem into two subproblems by setting 
(x + -66.66666665) equal to 61.96773352 and -61.96773352.

Subproblem 1

x + -66.66666665 = 61.96773352 Simplifying x + -66.66666665 = 61.96773352 Reorder the terms: -66.66666665 + x = 61.96773352 Solving -66.66666665 + x = 61.96773352 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '66.66666665' to each side of the equation. -66.66666665 + 66.66666665 + x = 61.96773352 + 66.66666665 Combine like terms: -66.66666665 + 66.66666665 = 0.00000000 0.00000000 + x = 61.96773352 + 66.66666665 x = 61.96773352 + 66.66666665 Combine like terms: 61.96773352 + 66.66666665 = 128.63440017 x = 128.63440017 Simplifying x = 128.63440017

Subproblem 2

x + -66.66666665 = -61.96773352 Simplifying x + -66.66666665 = -61.96773352 Reorder the terms: -66.66666665 + x = -61.96773352 Solving -66.66666665 + x = -61.96773352 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '66.66666665' to each side of the equation. -66.66666665 + 66.66666665 + x = -61.96773352 + 66.66666665 Combine like terms: -66.66666665 + 66.66666665 = 0.00000000 0.00000000 + x = -61.96773352 + 66.66666665 x = -61.96773352 + 66.66666665 Combine like terms: -61.96773352 + 66.66666665 = 4.69893313 x = 4.69893313 Simplifying x = 4.69893313

Solution

The solution to the problem is based on the solutions from the subproblems. x = {128.63440017, 4.69893313}

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