4x^2-56x+3=0

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Solution for 4x^2-56x+3=0 equation:


Simplifying
4x2 + -56x + 3 = 0

Reorder the terms:
3 + -56x + 4x2 = 0

Solving
3 + -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'.
0.75 + -14x + x2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -14x + -0.75 + x2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -14x + x2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -14x + x2 = 0 + -0.75
-14x + x2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-14x + x2 = -0.75

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 = -0.75 + 49

Reorder the terms:
49 + -14x + x2 = -0.75 + 49

Combine like terms: -0.75 + 49 = 48.25
49 + -14x + x2 = 48.25

Factor a perfect square on the left side:
(x + -7)(x + -7) = 48.25

Calculate the square root of the right side: 6.946221995

Break this problem into two subproblems by setting 
(x + -7) equal to 6.946221995 and -6.946221995.

Subproblem 1

x + -7 = 6.946221995 Simplifying x + -7 = 6.946221995 Reorder the terms: -7 + x = 6.946221995 Solving -7 + x = 6.946221995 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 = 6.946221995 + 7 Combine like terms: -7 + 7 = 0 0 + x = 6.946221995 + 7 x = 6.946221995 + 7 Combine like terms: 6.946221995 + 7 = 13.946221995 x = 13.946221995 Simplifying x = 13.946221995

Subproblem 2

x + -7 = -6.946221995 Simplifying x + -7 = -6.946221995 Reorder the terms: -7 + x = -6.946221995 Solving -7 + x = -6.946221995 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 = -6.946221995 + 7 Combine like terms: -7 + 7 = 0 0 + x = -6.946221995 + 7 x = -6.946221995 + 7 Combine like terms: -6.946221995 + 7 = 0.053778005 x = 0.053778005 Simplifying x = 0.053778005

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.946221995, 0.053778005}

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