4x^2-23x+13=-7+6

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Solution for 4x^2-23x+13=-7+6 equation:


Simplifying
4x2 + -23x + 13 = -7 + 6

Reorder the terms:
13 + -23x + 4x2 = -7 + 6

Combine like terms: -7 + 6 = -1
13 + -23x + 4x2 = -1

Solving
13 + -23x + 4x2 = -1

Solving for variable 'x'.

Reorder the terms:
13 + 1 + -23x + 4x2 = -1 + 1

Combine like terms: 13 + 1 = 14
14 + -23x + 4x2 = -1 + 1

Combine like terms: -1 + 1 = 0
14 + -23x + 4x2 = 0

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

Divide each side by '4'.
3.5 + -5.75x + x2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -5.75x + -3.5 + x2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -5.75x + x2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -5.75x + x2 = 0 + -3.5
-5.75x + x2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-5.75x + x2 = -3.5

The x term is -5.75x.  Take half its coefficient (-2.875).
Square it (8.265625) and add it to both sides.

Add '8.265625' to each side of the equation.
-5.75x + 8.265625 + x2 = -3.5 + 8.265625

Reorder the terms:
8.265625 + -5.75x + x2 = -3.5 + 8.265625

Combine like terms: -3.5 + 8.265625 = 4.765625
8.265625 + -5.75x + x2 = 4.765625

Factor a perfect square on the left side:
(x + -2.875)(x + -2.875) = 4.765625

Calculate the square root of the right side: 2.18303115

Break this problem into two subproblems by setting 
(x + -2.875) equal to 2.18303115 and -2.18303115.

Subproblem 1

x + -2.875 = 2.18303115 Simplifying x + -2.875 = 2.18303115 Reorder the terms: -2.875 + x = 2.18303115 Solving -2.875 + x = 2.18303115 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.875' to each side of the equation. -2.875 + 2.875 + x = 2.18303115 + 2.875 Combine like terms: -2.875 + 2.875 = 0.000 0.000 + x = 2.18303115 + 2.875 x = 2.18303115 + 2.875 Combine like terms: 2.18303115 + 2.875 = 5.05803115 x = 5.05803115 Simplifying x = 5.05803115

Subproblem 2

x + -2.875 = -2.18303115 Simplifying x + -2.875 = -2.18303115 Reorder the terms: -2.875 + x = -2.18303115 Solving -2.875 + x = -2.18303115 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.875' to each side of the equation. -2.875 + 2.875 + x = -2.18303115 + 2.875 Combine like terms: -2.875 + 2.875 = 0.000 0.000 + x = -2.18303115 + 2.875 x = -2.18303115 + 2.875 Combine like terms: -2.18303115 + 2.875 = 0.69196885 x = 0.69196885 Simplifying x = 0.69196885

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.05803115, 0.69196885}

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