4(x^2)+56x+1=0

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Solution for 4(x^2)+56x+1=0 equation:


Simplifying
4(x2) + 56x + 1 = 0

Reorder the terms:
1 + 56x + 4x2 = 0

Solving
1 + 56x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
0.25 + 14x + x2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 14x + -0.25 + x2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 14x + x2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 14x + x2 = 0 + -0.25
14x + x2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
14x + x2 = -0.25

The x term is 14x.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14x + 49 + x2 = -0.25 + 49

Reorder the terms:
49 + 14x + x2 = -0.25 + 49

Combine like terms: -0.25 + 49 = 48.75
49 + 14x + x2 = 48.75

Factor a perfect square on the left side:
(x + 7)(x + 7) = 48.75

Calculate the square root of the right side: 6.982120022

Break this problem into two subproblems by setting 
(x + 7) equal to 6.982120022 and -6.982120022.

Subproblem 1

x + 7 = 6.982120022 Simplifying x + 7 = 6.982120022 Reorder the terms: 7 + x = 6.982120022 Solving 7 + x = 6.982120022 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 6.982120022 + -7 Combine like terms: 7 + -7 = 0 0 + x = 6.982120022 + -7 x = 6.982120022 + -7 Combine like terms: 6.982120022 + -7 = -0.017879978 x = -0.017879978 Simplifying x = -0.017879978

Subproblem 2

x + 7 = -6.982120022 Simplifying x + 7 = -6.982120022 Reorder the terms: 7 + x = -6.982120022 Solving 7 + x = -6.982120022 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = -6.982120022 + -7 Combine like terms: 7 + -7 = 0 0 + x = -6.982120022 + -7 x = -6.982120022 + -7 Combine like terms: -6.982120022 + -7 = -13.982120022 x = -13.982120022 Simplifying x = -13.982120022

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.017879978, -13.982120022}

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