6x^2+100x=73

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Solution for 6x^2+100x=73 equation:


Simplifying
6x2 + 100x = 73

Reorder the terms:
100x + 6x2 = 73

Solving
100x + 6x2 = 73

Solving for variable 'x'.

Reorder the terms:
-73 + 100x + 6x2 = 73 + -73

Combine like terms: 73 + -73 = 0
-73 + 100x + 6x2 = 0

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

Divide each side by '6'.
-12.16666667 + 16.66666667x + x2 = 0

Move the constant term to the right:

Add '12.16666667' to each side of the equation.
-12.16666667 + 16.66666667x + 12.16666667 + x2 = 0 + 12.16666667

Reorder the terms:
-12.16666667 + 12.16666667 + 16.66666667x + x2 = 0 + 12.16666667

Combine like terms: -12.16666667 + 12.16666667 = 0.00000000
0.00000000 + 16.66666667x + x2 = 0 + 12.16666667
16.66666667x + x2 = 0 + 12.16666667

Combine like terms: 0 + 12.16666667 = 12.16666667
16.66666667x + x2 = 12.16666667

The x term is 16.66666667x.  Take half its coefficient (8.333333335).
Square it (69.44444447) and add it to both sides.

Add '69.44444447' to each side of the equation.
16.66666667x + 69.44444447 + x2 = 12.16666667 + 69.44444447

Reorder the terms:
69.44444447 + 16.66666667x + x2 = 12.16666667 + 69.44444447

Combine like terms: 12.16666667 + 69.44444447 = 81.61111114
69.44444447 + 16.66666667x + x2 = 81.61111114

Factor a perfect square on the left side:
(x + 8.333333335)(x + 8.333333335) = 81.61111114

Calculate the square root of the right side: 9.033886824

Break this problem into two subproblems by setting 
(x + 8.333333335) equal to 9.033886824 and -9.033886824.

Subproblem 1

x + 8.333333335 = 9.033886824 Simplifying x + 8.333333335 = 9.033886824 Reorder the terms: 8.333333335 + x = 9.033886824 Solving 8.333333335 + x = 9.033886824 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.333333335' to each side of the equation. 8.333333335 + -8.333333335 + x = 9.033886824 + -8.333333335 Combine like terms: 8.333333335 + -8.333333335 = 0.000000000 0.000000000 + x = 9.033886824 + -8.333333335 x = 9.033886824 + -8.333333335 Combine like terms: 9.033886824 + -8.333333335 = 0.700553489 x = 0.700553489 Simplifying x = 0.700553489

Subproblem 2

x + 8.333333335 = -9.033886824 Simplifying x + 8.333333335 = -9.033886824 Reorder the terms: 8.333333335 + x = -9.033886824 Solving 8.333333335 + x = -9.033886824 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.333333335' to each side of the equation. 8.333333335 + -8.333333335 + x = -9.033886824 + -8.333333335 Combine like terms: 8.333333335 + -8.333333335 = 0.000000000 0.000000000 + x = -9.033886824 + -8.333333335 x = -9.033886824 + -8.333333335 Combine like terms: -9.033886824 + -8.333333335 = -17.367220159 x = -17.367220159 Simplifying x = -17.367220159

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.700553489, -17.367220159}

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