6.52x^2+3.68x-4.65=0

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Solution for 6.52x^2+3.68x-4.65=0 equation:


Simplifying
6.52x2 + 3.68x + -4.65 = 0

Reorder the terms:
-4.65 + 3.68x + 6.52x2 = 0

Solving
-4.65 + 3.68x + 6.52x2 = 0

Solving for variable 'x'.

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

Divide each side by '6.52'.
-0.713190184 + 0.5644171779x + x2 = 0

Move the constant term to the right:

Add '0.713190184' to each side of the equation.
-0.713190184 + 0.5644171779x + 0.713190184 + x2 = 0 + 0.713190184

Reorder the terms:
-0.713190184 + 0.713190184 + 0.5644171779x + x2 = 0 + 0.713190184

Combine like terms: -0.713190184 + 0.713190184 = 0.000000000
0.000000000 + 0.5644171779x + x2 = 0 + 0.713190184
0.5644171779x + x2 = 0 + 0.713190184

Combine like terms: 0 + 0.713190184 = 0.713190184
0.5644171779x + x2 = 0.713190184

The x term is 0.5644171779x.  Take half its coefficient (0.282208589).
Square it (0.07964168771) and add it to both sides.

Add '0.07964168771' to each side of the equation.
0.5644171779x + 0.07964168771 + x2 = 0.713190184 + 0.07964168771

Reorder the terms:
0.07964168771 + 0.5644171779x + x2 = 0.713190184 + 0.07964168771

Combine like terms: 0.713190184 + 0.07964168771 = 0.79283187171
0.07964168771 + 0.5644171779x + x2 = 0.79283187171

Factor a perfect square on the left side:
(x + 0.282208589)(x + 0.282208589) = 0.79283187171

Calculate the square root of the right side: 0.890411069

Break this problem into two subproblems by setting 
(x + 0.282208589) equal to 0.890411069 and -0.890411069.

Subproblem 1

x + 0.282208589 = 0.890411069 Simplifying x + 0.282208589 = 0.890411069 Reorder the terms: 0.282208589 + x = 0.890411069 Solving 0.282208589 + x = 0.890411069 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.282208589' to each side of the equation. 0.282208589 + -0.282208589 + x = 0.890411069 + -0.282208589 Combine like terms: 0.282208589 + -0.282208589 = 0.000000000 0.000000000 + x = 0.890411069 + -0.282208589 x = 0.890411069 + -0.282208589 Combine like terms: 0.890411069 + -0.282208589 = 0.60820248 x = 0.60820248 Simplifying x = 0.60820248

Subproblem 2

x + 0.282208589 = -0.890411069 Simplifying x + 0.282208589 = -0.890411069 Reorder the terms: 0.282208589 + x = -0.890411069 Solving 0.282208589 + x = -0.890411069 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.282208589' to each side of the equation. 0.282208589 + -0.282208589 + x = -0.890411069 + -0.282208589 Combine like terms: 0.282208589 + -0.282208589 = 0.000000000 0.000000000 + x = -0.890411069 + -0.282208589 x = -0.890411069 + -0.282208589 Combine like terms: -0.890411069 + -0.282208589 = -1.172619658 x = -1.172619658 Simplifying x = -1.172619658

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.60820248, -1.172619658}

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