3.76x^2-9.65x+2.61=0

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Solution for 3.76x^2-9.65x+2.61=0 equation:


Simplifying
3.76x2 + -9.65x + 2.61 = 0

Reorder the terms:
2.61 + -9.65x + 3.76x2 = 0

Solving
2.61 + -9.65x + 3.76x2 = 0

Solving for variable 'x'.

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

Divide each side by '3.76'.
0.6941489362 + -2.566489362x + x2 = 0

Move the constant term to the right:

Add '-0.6941489362' to each side of the equation.
0.6941489362 + -2.566489362x + -0.6941489362 + x2 = 0 + -0.6941489362

Reorder the terms:
0.6941489362 + -0.6941489362 + -2.566489362x + x2 = 0 + -0.6941489362

Combine like terms: 0.6941489362 + -0.6941489362 = 0.0000000000
0.0000000000 + -2.566489362x + x2 = 0 + -0.6941489362
-2.566489362x + x2 = 0 + -0.6941489362

Combine like terms: 0 + -0.6941489362 = -0.6941489362
-2.566489362x + x2 = -0.6941489362

The x term is -2.566489362x.  Take half its coefficient (-1.283244681).
Square it (1.646716911) and add it to both sides.

Add '1.646716911' to each side of the equation.
-2.566489362x + 1.646716911 + x2 = -0.6941489362 + 1.646716911

Reorder the terms:
1.646716911 + -2.566489362x + x2 = -0.6941489362 + 1.646716911

Combine like terms: -0.6941489362 + 1.646716911 = 0.9525679748
1.646716911 + -2.566489362x + x2 = 0.9525679748

Factor a perfect square on the left side:
(x + -1.283244681)(x + -1.283244681) = 0.9525679748

Calculate the square root of the right side: 0.975995889

Break this problem into two subproblems by setting 
(x + -1.283244681) equal to 0.975995889 and -0.975995889.

Subproblem 1

x + -1.283244681 = 0.975995889 Simplifying x + -1.283244681 = 0.975995889 Reorder the terms: -1.283244681 + x = 0.975995889 Solving -1.283244681 + x = 0.975995889 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.283244681' to each side of the equation. -1.283244681 + 1.283244681 + x = 0.975995889 + 1.283244681 Combine like terms: -1.283244681 + 1.283244681 = 0.000000000 0.000000000 + x = 0.975995889 + 1.283244681 x = 0.975995889 + 1.283244681 Combine like terms: 0.975995889 + 1.283244681 = 2.25924057 x = 2.25924057 Simplifying x = 2.25924057

Subproblem 2

x + -1.283244681 = -0.975995889 Simplifying x + -1.283244681 = -0.975995889 Reorder the terms: -1.283244681 + x = -0.975995889 Solving -1.283244681 + x = -0.975995889 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.283244681' to each side of the equation. -1.283244681 + 1.283244681 + x = -0.975995889 + 1.283244681 Combine like terms: -1.283244681 + 1.283244681 = 0.000000000 0.000000000 + x = -0.975995889 + 1.283244681 x = -0.975995889 + 1.283244681 Combine like terms: -0.975995889 + 1.283244681 = 0.307248792 x = 0.307248792 Simplifying x = 0.307248792

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.25924057, 0.307248792}

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