46x^2-56x-63.75=0

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Solution for 46x^2-56x-63.75=0 equation:


Simplifying
46x2 + -56x + -63.75 = 0

Reorder the terms:
-63.75 + -56x + 46x2 = 0

Solving
-63.75 + -56x + 46x2 = 0

Solving for variable 'x'.

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

Divide each side by '46'.
-1.385869565 + -1.217391304x + x2 = 0

Move the constant term to the right:

Add '1.385869565' to each side of the equation.
-1.385869565 + -1.217391304x + 1.385869565 + x2 = 0 + 1.385869565

Reorder the terms:
-1.385869565 + 1.385869565 + -1.217391304x + x2 = 0 + 1.385869565

Combine like terms: -1.385869565 + 1.385869565 = 0.000000000
0.000000000 + -1.217391304x + x2 = 0 + 1.385869565
-1.217391304x + x2 = 0 + 1.385869565

Combine like terms: 0 + 1.385869565 = 1.385869565
-1.217391304x + x2 = 1.385869565

The x term is -1.217391304x.  Take half its coefficient (-0.608695652).
Square it (0.3705103968) and add it to both sides.

Add '0.3705103968' to each side of the equation.
-1.217391304x + 0.3705103968 + x2 = 1.385869565 + 0.3705103968

Reorder the terms:
0.3705103968 + -1.217391304x + x2 = 1.385869565 + 0.3705103968

Combine like terms: 1.385869565 + 0.3705103968 = 1.7563799618
0.3705103968 + -1.217391304x + x2 = 1.7563799618

Factor a perfect square on the left side:
(x + -0.608695652)(x + -0.608695652) = 1.7563799618

Calculate the square root of the right side: 1.325284861

Break this problem into two subproblems by setting 
(x + -0.608695652) equal to 1.325284861 and -1.325284861.

Subproblem 1

x + -0.608695652 = 1.325284861 Simplifying x + -0.608695652 = 1.325284861 Reorder the terms: -0.608695652 + x = 1.325284861 Solving -0.608695652 + x = 1.325284861 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.608695652' to each side of the equation. -0.608695652 + 0.608695652 + x = 1.325284861 + 0.608695652 Combine like terms: -0.608695652 + 0.608695652 = 0.000000000 0.000000000 + x = 1.325284861 + 0.608695652 x = 1.325284861 + 0.608695652 Combine like terms: 1.325284861 + 0.608695652 = 1.933980513 x = 1.933980513 Simplifying x = 1.933980513

Subproblem 2

x + -0.608695652 = -1.325284861 Simplifying x + -0.608695652 = -1.325284861 Reorder the terms: -0.608695652 + x = -1.325284861 Solving -0.608695652 + x = -1.325284861 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.608695652' to each side of the equation. -0.608695652 + 0.608695652 + x = -1.325284861 + 0.608695652 Combine like terms: -0.608695652 + 0.608695652 = 0.000000000 0.000000000 + x = -1.325284861 + 0.608695652 x = -1.325284861 + 0.608695652 Combine like terms: -1.325284861 + 0.608695652 = -0.716589209 x = -0.716589209 Simplifying x = -0.716589209

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.933980513, -0.716589209}

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