63x^2+64x-100=0

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Solution for 63x^2+64x-100=0 equation:


Simplifying
63x2 + 64x + -100 = 0

Reorder the terms:
-100 + 64x + 63x2 = 0

Solving
-100 + 64x + 63x2 = 0

Solving for variable 'x'.

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

Divide each side by '63'.
-1.587301587 + 1.015873016x + x2 = 0

Move the constant term to the right:

Add '1.587301587' to each side of the equation.
-1.587301587 + 1.015873016x + 1.587301587 + x2 = 0 + 1.587301587

Reorder the terms:
-1.587301587 + 1.587301587 + 1.015873016x + x2 = 0 + 1.587301587

Combine like terms: -1.587301587 + 1.587301587 = 0.000000000
0.000000000 + 1.015873016x + x2 = 0 + 1.587301587
1.015873016x + x2 = 0 + 1.587301587

Combine like terms: 0 + 1.587301587 = 1.587301587
1.015873016x + x2 = 1.587301587

The x term is 1.015873016x.  Take half its coefficient (0.507936508).
Square it (0.2579994962) and add it to both sides.

Add '0.2579994962' to each side of the equation.
1.015873016x + 0.2579994962 + x2 = 1.587301587 + 0.2579994962

Reorder the terms:
0.2579994962 + 1.015873016x + x2 = 1.587301587 + 0.2579994962

Combine like terms: 1.587301587 + 0.2579994962 = 1.8453010832
0.2579994962 + 1.015873016x + x2 = 1.8453010832

Factor a perfect square on the left side:
(x + 0.507936508)(x + 0.507936508) = 1.8453010832

Calculate the square root of the right side: 1.358418596

Break this problem into two subproblems by setting 
(x + 0.507936508) equal to 1.358418596 and -1.358418596.

Subproblem 1

x + 0.507936508 = 1.358418596 Simplifying x + 0.507936508 = 1.358418596 Reorder the terms: 0.507936508 + x = 1.358418596 Solving 0.507936508 + x = 1.358418596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.507936508' to each side of the equation. 0.507936508 + -0.507936508 + x = 1.358418596 + -0.507936508 Combine like terms: 0.507936508 + -0.507936508 = 0.000000000 0.000000000 + x = 1.358418596 + -0.507936508 x = 1.358418596 + -0.507936508 Combine like terms: 1.358418596 + -0.507936508 = 0.850482088 x = 0.850482088 Simplifying x = 0.850482088

Subproblem 2

x + 0.507936508 = -1.358418596 Simplifying x + 0.507936508 = -1.358418596 Reorder the terms: 0.507936508 + x = -1.358418596 Solving 0.507936508 + x = -1.358418596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.507936508' to each side of the equation. 0.507936508 + -0.507936508 + x = -1.358418596 + -0.507936508 Combine like terms: 0.507936508 + -0.507936508 = 0.000000000 0.000000000 + x = -1.358418596 + -0.507936508 x = -1.358418596 + -0.507936508 Combine like terms: -1.358418596 + -0.507936508 = -1.866355104 x = -1.866355104 Simplifying x = -1.866355104

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.850482088, -1.866355104}

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