6x^2-x-3=102

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Solution for 6x^2-x-3=102 equation:


Simplifying
6x2 + -1x + -3 = 102

Reorder the terms:
-3 + -1x + 6x2 = 102

Solving
-3 + -1x + 6x2 = 102

Solving for variable 'x'.

Reorder the terms:
-3 + -102 + -1x + 6x2 = 102 + -102

Combine like terms: -3 + -102 = -105
-105 + -1x + 6x2 = 102 + -102

Combine like terms: 102 + -102 = 0
-105 + -1x + 6x2 = 0

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

Divide each side by '6'.
-17.5 + -0.1666666667x + x2 = 0

Move the constant term to the right:

Add '17.5' to each side of the equation.
-17.5 + -0.1666666667x + 17.5 + x2 = 0 + 17.5

Reorder the terms:
-17.5 + 17.5 + -0.1666666667x + x2 = 0 + 17.5

Combine like terms: -17.5 + 17.5 = 0.0
0.0 + -0.1666666667x + x2 = 0 + 17.5
-0.1666666667x + x2 = 0 + 17.5

Combine like terms: 0 + 17.5 = 17.5
-0.1666666667x + x2 = 17.5

The x term is -0.1666666667x.  Take half its coefficient (-0.08333333335).
Square it (0.006944444447) and add it to both sides.

Add '0.006944444447' to each side of the equation.
-0.1666666667x + 0.006944444447 + x2 = 17.5 + 0.006944444447

Reorder the terms:
0.006944444447 + -0.1666666667x + x2 = 17.5 + 0.006944444447

Combine like terms: 17.5 + 0.006944444447 = 17.506944444447
0.006944444447 + -0.1666666667x + x2 = 17.506944444447

Factor a perfect square on the left side:
(x + -0.08333333335)(x + -0.08333333335) = 17.506944444447

Calculate the square root of the right side: 4.18413007

Break this problem into two subproblems by setting 
(x + -0.08333333335) equal to 4.18413007 and -4.18413007.

Subproblem 1

x + -0.08333333335 = 4.18413007 Simplifying x + -0.08333333335 = 4.18413007 Reorder the terms: -0.08333333335 + x = 4.18413007 Solving -0.08333333335 + x = 4.18413007 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.08333333335' to each side of the equation. -0.08333333335 + 0.08333333335 + x = 4.18413007 + 0.08333333335 Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000 0.00000000000 + x = 4.18413007 + 0.08333333335 x = 4.18413007 + 0.08333333335 Combine like terms: 4.18413007 + 0.08333333335 = 4.26746340335 x = 4.26746340335 Simplifying x = 4.26746340335

Subproblem 2

x + -0.08333333335 = -4.18413007 Simplifying x + -0.08333333335 = -4.18413007 Reorder the terms: -0.08333333335 + x = -4.18413007 Solving -0.08333333335 + x = -4.18413007 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.08333333335' to each side of the equation. -0.08333333335 + 0.08333333335 + x = -4.18413007 + 0.08333333335 Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000 0.00000000000 + x = -4.18413007 + 0.08333333335 x = -4.18413007 + 0.08333333335 Combine like terms: -4.18413007 + 0.08333333335 = -4.10079673665 x = -4.10079673665 Simplifying x = -4.10079673665

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.26746340335, -4.10079673665}

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