61x^2+56x+4=0

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Solution for 61x^2+56x+4=0 equation:


Simplifying
61x2 + 56x + 4 = 0

Reorder the terms:
4 + 56x + 61x2 = 0

Solving
4 + 56x + 61x2 = 0

Solving for variable 'x'.

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

Divide each side by '61'.
0.06557377049 + 0.9180327869x + x2 = 0

Move the constant term to the right:

Add '-0.06557377049' to each side of the equation.
0.06557377049 + 0.9180327869x + -0.06557377049 + x2 = 0 + -0.06557377049

Reorder the terms:
0.06557377049 + -0.06557377049 + 0.9180327869x + x2 = 0 + -0.06557377049

Combine like terms: 0.06557377049 + -0.06557377049 = 0.00000000000
0.00000000000 + 0.9180327869x + x2 = 0 + -0.06557377049
0.9180327869x + x2 = 0 + -0.06557377049

Combine like terms: 0 + -0.06557377049 = -0.06557377049
0.9180327869x + x2 = -0.06557377049

The x term is 0.9180327869x.  Take half its coefficient (0.4590163935).
Square it (0.2106960495) and add it to both sides.

Add '0.2106960495' to each side of the equation.
0.9180327869x + 0.2106960495 + x2 = -0.06557377049 + 0.2106960495

Reorder the terms:
0.2106960495 + 0.9180327869x + x2 = -0.06557377049 + 0.2106960495

Combine like terms: -0.06557377049 + 0.2106960495 = 0.14512227901
0.2106960495 + 0.9180327869x + x2 = 0.14512227901

Factor a perfect square on the left side:
(x + 0.4590163935)(x + 0.4590163935) = 0.14512227901

Calculate the square root of the right side: 0.380949182

Break this problem into two subproblems by setting 
(x + 0.4590163935) equal to 0.380949182 and -0.380949182.

Subproblem 1

x + 0.4590163935 = 0.380949182 Simplifying x + 0.4590163935 = 0.380949182 Reorder the terms: 0.4590163935 + x = 0.380949182 Solving 0.4590163935 + x = 0.380949182 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4590163935' to each side of the equation. 0.4590163935 + -0.4590163935 + x = 0.380949182 + -0.4590163935 Combine like terms: 0.4590163935 + -0.4590163935 = 0.0000000000 0.0000000000 + x = 0.380949182 + -0.4590163935 x = 0.380949182 + -0.4590163935 Combine like terms: 0.380949182 + -0.4590163935 = -0.0780672115 x = -0.0780672115 Simplifying x = -0.0780672115

Subproblem 2

x + 0.4590163935 = -0.380949182 Simplifying x + 0.4590163935 = -0.380949182 Reorder the terms: 0.4590163935 + x = -0.380949182 Solving 0.4590163935 + x = -0.380949182 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4590163935' to each side of the equation. 0.4590163935 + -0.4590163935 + x = -0.380949182 + -0.4590163935 Combine like terms: 0.4590163935 + -0.4590163935 = 0.0000000000 0.0000000000 + x = -0.380949182 + -0.4590163935 x = -0.380949182 + -0.4590163935 Combine like terms: -0.380949182 + -0.4590163935 = -0.8399655755 x = -0.8399655755 Simplifying x = -0.8399655755

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.0780672115, -0.8399655755}

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