39x^2-482x-2463=0

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Solution for 39x^2-482x-2463=0 equation:


Simplifying
39x2 + -482x + -2463 = 0

Reorder the terms:
-2463 + -482x + 39x2 = 0

Solving
-2463 + -482x + 39x2 = 0

Solving for variable 'x'.

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

Divide each side by '39'.
-63.15384615 + -12.35897436x + x2 = 0

Move the constant term to the right:

Add '63.15384615' to each side of the equation.
-63.15384615 + -12.35897436x + 63.15384615 + x2 = 0 + 63.15384615

Reorder the terms:
-63.15384615 + 63.15384615 + -12.35897436x + x2 = 0 + 63.15384615

Combine like terms: -63.15384615 + 63.15384615 = 0.00000000
0.00000000 + -12.35897436x + x2 = 0 + 63.15384615
-12.35897436x + x2 = 0 + 63.15384615

Combine like terms: 0 + 63.15384615 = 63.15384615
-12.35897436x + x2 = 63.15384615

The x term is -12.35897436x.  Take half its coefficient (-6.17948718).
Square it (38.18606181) and add it to both sides.

Add '38.18606181' to each side of the equation.
-12.35897436x + 38.18606181 + x2 = 63.15384615 + 38.18606181

Reorder the terms:
38.18606181 + -12.35897436x + x2 = 63.15384615 + 38.18606181

Combine like terms: 63.15384615 + 38.18606181 = 101.33990796
38.18606181 + -12.35897436x + x2 = 101.33990796

Factor a perfect square on the left side:
(x + -6.17948718)(x + -6.17948718) = 101.33990796

Calculate the square root of the right side: 10.06677247

Break this problem into two subproblems by setting 
(x + -6.17948718) equal to 10.06677247 and -10.06677247.

Subproblem 1

x + -6.17948718 = 10.06677247 Simplifying x + -6.17948718 = 10.06677247 Reorder the terms: -6.17948718 + x = 10.06677247 Solving -6.17948718 + x = 10.06677247 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.17948718' to each side of the equation. -6.17948718 + 6.17948718 + x = 10.06677247 + 6.17948718 Combine like terms: -6.17948718 + 6.17948718 = 0.00000000 0.00000000 + x = 10.06677247 + 6.17948718 x = 10.06677247 + 6.17948718 Combine like terms: 10.06677247 + 6.17948718 = 16.24625965 x = 16.24625965 Simplifying x = 16.24625965

Subproblem 2

x + -6.17948718 = -10.06677247 Simplifying x + -6.17948718 = -10.06677247 Reorder the terms: -6.17948718 + x = -10.06677247 Solving -6.17948718 + x = -10.06677247 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.17948718' to each side of the equation. -6.17948718 + 6.17948718 + x = -10.06677247 + 6.17948718 Combine like terms: -6.17948718 + 6.17948718 = 0.00000000 0.00000000 + x = -10.06677247 + 6.17948718 x = -10.06677247 + 6.17948718 Combine like terms: -10.06677247 + 6.17948718 = -3.88728529 x = -3.88728529 Simplifying x = -3.88728529

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.24625965, -3.88728529}

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