4x^2+-87x+-41=0

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Solution for 4x^2+-87x+-41=0 equation:


Simplifying
4x2 + -87x + -41 = 0

Reorder the terms:
-41 + -87x + 4x2 = 0

Solving
-41 + -87x + 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'.
-10.25 + -21.75x + x2 = 0

Move the constant term to the right:

Add '10.25' to each side of the equation.
-10.25 + -21.75x + 10.25 + x2 = 0 + 10.25

Reorder the terms:
-10.25 + 10.25 + -21.75x + x2 = 0 + 10.25

Combine like terms: -10.25 + 10.25 = 0.00
0.00 + -21.75x + x2 = 0 + 10.25
-21.75x + x2 = 0 + 10.25

Combine like terms: 0 + 10.25 = 10.25
-21.75x + x2 = 10.25

The x term is -21.75x.  Take half its coefficient (-10.875).
Square it (118.265625) and add it to both sides.

Add '118.265625' to each side of the equation.
-21.75x + 118.265625 + x2 = 10.25 + 118.265625

Reorder the terms:
118.265625 + -21.75x + x2 = 10.25 + 118.265625

Combine like terms: 10.25 + 118.265625 = 128.515625
118.265625 + -21.75x + x2 = 128.515625

Factor a perfect square on the left side:
(x + -10.875)(x + -10.875) = 128.515625

Calculate the square root of the right side: 11.336473217

Break this problem into two subproblems by setting 
(x + -10.875) equal to 11.336473217 and -11.336473217.

Subproblem 1

x + -10.875 = 11.336473217 Simplifying x + -10.875 = 11.336473217 Reorder the terms: -10.875 + x = 11.336473217 Solving -10.875 + x = 11.336473217 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.875' to each side of the equation. -10.875 + 10.875 + x = 11.336473217 + 10.875 Combine like terms: -10.875 + 10.875 = 0.000 0.000 + x = 11.336473217 + 10.875 x = 11.336473217 + 10.875 Combine like terms: 11.336473217 + 10.875 = 22.211473217 x = 22.211473217 Simplifying x = 22.211473217

Subproblem 2

x + -10.875 = -11.336473217 Simplifying x + -10.875 = -11.336473217 Reorder the terms: -10.875 + x = -11.336473217 Solving -10.875 + x = -11.336473217 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.875' to each side of the equation. -10.875 + 10.875 + x = -11.336473217 + 10.875 Combine like terms: -10.875 + 10.875 = 0.000 0.000 + x = -11.336473217 + 10.875 x = -11.336473217 + 10.875 Combine like terms: -11.336473217 + 10.875 = -0.461473217 x = -0.461473217 Simplifying x = -0.461473217

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.211473217, -0.461473217}

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