6.73x^2+2.63x=5.43

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Solution for 6.73x^2+2.63x=5.43 equation:


Simplifying
6.73x2 + 2.63x = 5.43

Reorder the terms:
2.63x + 6.73x2 = 5.43

Solving
2.63x + 6.73x2 = 5.43

Solving for variable 'x'.

Reorder the terms:
-5.43 + 2.63x + 6.73x2 = 5.43 + -5.43

Combine like terms: 5.43 + -5.43 = 0.00
-5.43 + 2.63x + 6.73x2 = 0.00

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

Divide each side by '6.73'.
-0.8068350669 + 0.3907875186x + x2 = 0

Move the constant term to the right:

Add '0.8068350669' to each side of the equation.
-0.8068350669 + 0.3907875186x + 0.8068350669 + x2 = 0 + 0.8068350669

Reorder the terms:
-0.8068350669 + 0.8068350669 + 0.3907875186x + x2 = 0 + 0.8068350669

Combine like terms: -0.8068350669 + 0.8068350669 = 0.0000000000
0.0000000000 + 0.3907875186x + x2 = 0 + 0.8068350669
0.3907875186x + x2 = 0 + 0.8068350669

Combine like terms: 0 + 0.8068350669 = 0.8068350669
0.3907875186x + x2 = 0.8068350669

The x term is 0.3907875186x.  Take half its coefficient (0.1953937593).
Square it (0.03817872117) and add it to both sides.

Add '0.03817872117' to each side of the equation.
0.3907875186x + 0.03817872117 + x2 = 0.8068350669 + 0.03817872117

Reorder the terms:
0.03817872117 + 0.3907875186x + x2 = 0.8068350669 + 0.03817872117

Combine like terms: 0.8068350669 + 0.03817872117 = 0.84501378807
0.03817872117 + 0.3907875186x + x2 = 0.84501378807

Factor a perfect square on the left side:
(x + 0.1953937593)(x + 0.1953937593) = 0.84501378807

Calculate the square root of the right side: 0.919246315

Break this problem into two subproblems by setting 
(x + 0.1953937593) equal to 0.919246315 and -0.919246315.

Subproblem 1

x + 0.1953937593 = 0.919246315 Simplifying x + 0.1953937593 = 0.919246315 Reorder the terms: 0.1953937593 + x = 0.919246315 Solving 0.1953937593 + x = 0.919246315 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1953937593' to each side of the equation. 0.1953937593 + -0.1953937593 + x = 0.919246315 + -0.1953937593 Combine like terms: 0.1953937593 + -0.1953937593 = 0.0000000000 0.0000000000 + x = 0.919246315 + -0.1953937593 x = 0.919246315 + -0.1953937593 Combine like terms: 0.919246315 + -0.1953937593 = 0.7238525557 x = 0.7238525557 Simplifying x = 0.7238525557

Subproblem 2

x + 0.1953937593 = -0.919246315 Simplifying x + 0.1953937593 = -0.919246315 Reorder the terms: 0.1953937593 + x = -0.919246315 Solving 0.1953937593 + x = -0.919246315 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1953937593' to each side of the equation. 0.1953937593 + -0.1953937593 + x = -0.919246315 + -0.1953937593 Combine like terms: 0.1953937593 + -0.1953937593 = 0.0000000000 0.0000000000 + x = -0.919246315 + -0.1953937593 x = -0.919246315 + -0.1953937593 Combine like terms: -0.919246315 + -0.1953937593 = -1.1146400743 x = -1.1146400743 Simplifying x = -1.1146400743

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.7238525557, -1.1146400743}

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