7.63x^2+2.77x=5.37

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Solution for 7.63x^2+2.77x=5.37 equation:


Simplifying
7.63x2 + 2.77x = 5.37

Reorder the terms:
2.77x + 7.63x2 = 5.37

Solving
2.77x + 7.63x2 = 5.37

Solving for variable 'x'.

Reorder the terms:
-5.37 + 2.77x + 7.63x2 = 5.37 + -5.37

Combine like terms: 5.37 + -5.37 = 0.00
-5.37 + 2.77x + 7.63x2 = 0.00

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

Divide each side by '7.63'.
-0.7038007864 + 0.3630406291x + x2 = 0

Move the constant term to the right:

Add '0.7038007864' to each side of the equation.
-0.7038007864 + 0.3630406291x + 0.7038007864 + x2 = 0 + 0.7038007864

Reorder the terms:
-0.7038007864 + 0.7038007864 + 0.3630406291x + x2 = 0 + 0.7038007864

Combine like terms: -0.7038007864 + 0.7038007864 = 0.0000000000
0.0000000000 + 0.3630406291x + x2 = 0 + 0.7038007864
0.3630406291x + x2 = 0 + 0.7038007864

Combine like terms: 0 + 0.7038007864 = 0.7038007864
0.3630406291x + x2 = 0.7038007864

The x term is 0.3630406291x.  Take half its coefficient (0.1815203146).
Square it (0.03294962461) and add it to both sides.

Add '0.03294962461' to each side of the equation.
0.3630406291x + 0.03294962461 + x2 = 0.7038007864 + 0.03294962461

Reorder the terms:
0.03294962461 + 0.3630406291x + x2 = 0.7038007864 + 0.03294962461

Combine like terms: 0.7038007864 + 0.03294962461 = 0.73675041101
0.03294962461 + 0.3630406291x + x2 = 0.73675041101

Factor a perfect square on the left side:
(x + 0.1815203146)(x + 0.1815203146) = 0.73675041101

Calculate the square root of the right side: 0.858341663

Break this problem into two subproblems by setting 
(x + 0.1815203146) equal to 0.858341663 and -0.858341663.

Subproblem 1

x + 0.1815203146 = 0.858341663 Simplifying x + 0.1815203146 = 0.858341663 Reorder the terms: 0.1815203146 + x = 0.858341663 Solving 0.1815203146 + x = 0.858341663 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1815203146' to each side of the equation. 0.1815203146 + -0.1815203146 + x = 0.858341663 + -0.1815203146 Combine like terms: 0.1815203146 + -0.1815203146 = 0.0000000000 0.0000000000 + x = 0.858341663 + -0.1815203146 x = 0.858341663 + -0.1815203146 Combine like terms: 0.858341663 + -0.1815203146 = 0.6768213484 x = 0.6768213484 Simplifying x = 0.6768213484

Subproblem 2

x + 0.1815203146 = -0.858341663 Simplifying x + 0.1815203146 = -0.858341663 Reorder the terms: 0.1815203146 + x = -0.858341663 Solving 0.1815203146 + x = -0.858341663 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1815203146' to each side of the equation. 0.1815203146 + -0.1815203146 + x = -0.858341663 + -0.1815203146 Combine like terms: 0.1815203146 + -0.1815203146 = 0.0000000000 0.0000000000 + x = -0.858341663 + -0.1815203146 x = -0.858341663 + -0.1815203146 Combine like terms: -0.858341663 + -0.1815203146 = -1.0398619776 x = -1.0398619776 Simplifying x = -1.0398619776

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6768213484, -1.0398619776}

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