-2.37x^2+66.44x+696.39=900

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Solution for -2.37x^2+66.44x+696.39=900 equation:


Simplifying
-2.37x2 + 66.44x + 696.39 = 900

Reorder the terms:
696.39 + 66.44x + -2.37x2 = 900

Solving
696.39 + 66.44x + -2.37x2 = 900

Solving for variable 'x'.

Reorder the terms:
696.39 + -900 + 66.44x + -2.37x2 = 900 + -900

Combine like terms: 696.39 + -900 = -203.61
-203.61 + 66.44x + -2.37x2 = 900 + -900

Combine like terms: 900 + -900 = 0
-203.61 + 66.44x + -2.37x2 = 0

Begin completing the square.  Divide all terms by
-2.37 the coefficient of the squared term: 

Divide each side by '-2.37'.
85.91139241 + -28.03375527x + x2 = 0

Move the constant term to the right:

Add '-85.91139241' to each side of the equation.
85.91139241 + -28.03375527x + -85.91139241 + x2 = 0 + -85.91139241

Reorder the terms:
85.91139241 + -85.91139241 + -28.03375527x + x2 = 0 + -85.91139241

Combine like terms: 85.91139241 + -85.91139241 = 0.00000000
0.00000000 + -28.03375527x + x2 = 0 + -85.91139241
-28.03375527x + x2 = 0 + -85.91139241

Combine like terms: 0 + -85.91139241 = -85.91139241
-28.03375527x + x2 = -85.91139241

The x term is -28.03375527x.  Take half its coefficient (-14.01687764).
Square it (196.4728588) and add it to both sides.

Add '196.4728588' to each side of the equation.
-28.03375527x + 196.4728588 + x2 = -85.91139241 + 196.4728588

Reorder the terms:
196.4728588 + -28.03375527x + x2 = -85.91139241 + 196.4728588

Combine like terms: -85.91139241 + 196.4728588 = 110.56146639
196.4728588 + -28.03375527x + x2 = 110.56146639

Factor a perfect square on the left side:
(x + -14.01687764)(x + -14.01687764) = 110.56146639

Calculate the square root of the right side: 10.514821272

Break this problem into two subproblems by setting 
(x + -14.01687764) equal to 10.514821272 and -10.514821272.

Subproblem 1

x + -14.01687764 = 10.514821272 Simplifying x + -14.01687764 = 10.514821272 Reorder the terms: -14.01687764 + x = 10.514821272 Solving -14.01687764 + x = 10.514821272 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14.01687764' to each side of the equation. -14.01687764 + 14.01687764 + x = 10.514821272 + 14.01687764 Combine like terms: -14.01687764 + 14.01687764 = 0.00000000 0.00000000 + x = 10.514821272 + 14.01687764 x = 10.514821272 + 14.01687764 Combine like terms: 10.514821272 + 14.01687764 = 24.531698912 x = 24.531698912 Simplifying x = 24.531698912

Subproblem 2

x + -14.01687764 = -10.514821272 Simplifying x + -14.01687764 = -10.514821272 Reorder the terms: -14.01687764 + x = -10.514821272 Solving -14.01687764 + x = -10.514821272 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14.01687764' to each side of the equation. -14.01687764 + 14.01687764 + x = -10.514821272 + 14.01687764 Combine like terms: -14.01687764 + 14.01687764 = 0.00000000 0.00000000 + x = -10.514821272 + 14.01687764 x = -10.514821272 + 14.01687764 Combine like terms: -10.514821272 + 14.01687764 = 3.502056368 x = 3.502056368 Simplifying x = 3.502056368

Solution

The solution to the problem is based on the solutions from the subproblems. x = {24.531698912, 3.502056368}

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