49x^2-84x-307=0

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Solution for 49x^2-84x-307=0 equation:


Simplifying
49x2 + -84x + -307 = 0

Reorder the terms:
-307 + -84x + 49x2 = 0

Solving
-307 + -84x + 49x2 = 0

Solving for variable 'x'.

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

Divide each side by '49'.
-6.265306122 + -1.714285714x + x2 = 0

Move the constant term to the right:

Add '6.265306122' to each side of the equation.
-6.265306122 + -1.714285714x + 6.265306122 + x2 = 0 + 6.265306122

Reorder the terms:
-6.265306122 + 6.265306122 + -1.714285714x + x2 = 0 + 6.265306122

Combine like terms: -6.265306122 + 6.265306122 = 0.000000000
0.000000000 + -1.714285714x + x2 = 0 + 6.265306122
-1.714285714x + x2 = 0 + 6.265306122

Combine like terms: 0 + 6.265306122 = 6.265306122
-1.714285714x + x2 = 6.265306122

The x term is -1.714285714x.  Take half its coefficient (-0.857142857).
Square it (0.7346938773) and add it to both sides.

Add '0.7346938773' to each side of the equation.
-1.714285714x + 0.7346938773 + x2 = 6.265306122 + 0.7346938773

Reorder the terms:
0.7346938773 + -1.714285714x + x2 = 6.265306122 + 0.7346938773

Combine like terms: 6.265306122 + 0.7346938773 = 6.9999999993
0.7346938773 + -1.714285714x + x2 = 6.9999999993

Factor a perfect square on the left side:
(x + -0.857142857)(x + -0.857142857) = 6.9999999993

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + -0.857142857) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + -0.857142857 = 2.645751311 Simplifying x + -0.857142857 = 2.645751311 Reorder the terms: -0.857142857 + x = 2.645751311 Solving -0.857142857 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.857142857' to each side of the equation. -0.857142857 + 0.857142857 + x = 2.645751311 + 0.857142857 Combine like terms: -0.857142857 + 0.857142857 = 0.000000000 0.000000000 + x = 2.645751311 + 0.857142857 x = 2.645751311 + 0.857142857 Combine like terms: 2.645751311 + 0.857142857 = 3.502894168 x = 3.502894168 Simplifying x = 3.502894168

Subproblem 2

x + -0.857142857 = -2.645751311 Simplifying x + -0.857142857 = -2.645751311 Reorder the terms: -0.857142857 + x = -2.645751311 Solving -0.857142857 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.857142857' to each side of the equation. -0.857142857 + 0.857142857 + x = -2.645751311 + 0.857142857 Combine like terms: -0.857142857 + 0.857142857 = 0.000000000 0.000000000 + x = -2.645751311 + 0.857142857 x = -2.645751311 + 0.857142857 Combine like terms: -2.645751311 + 0.857142857 = -1.788608454 x = -1.788608454 Simplifying x = -1.788608454

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.502894168, -1.788608454}

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