6x^2-43x=75

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Solution for 6x^2-43x=75 equation:


Simplifying
6x2 + -43x = 75

Reorder the terms:
-43x + 6x2 = 75

Solving
-43x + 6x2 = 75

Solving for variable 'x'.

Reorder the terms:
-75 + -43x + 6x2 = 75 + -75

Combine like terms: 75 + -75 = 0
-75 + -43x + 6x2 = 0

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

Divide each side by '6'.
-12.5 + -7.166666667x + x2 = 0

Move the constant term to the right:

Add '12.5' to each side of the equation.
-12.5 + -7.166666667x + 12.5 + x2 = 0 + 12.5

Reorder the terms:
-12.5 + 12.5 + -7.166666667x + x2 = 0 + 12.5

Combine like terms: -12.5 + 12.5 = 0.0
0.0 + -7.166666667x + x2 = 0 + 12.5
-7.166666667x + x2 = 0 + 12.5

Combine like terms: 0 + 12.5 = 12.5
-7.166666667x + x2 = 12.5

The x term is -7.166666667x.  Take half its coefficient (-3.583333334).
Square it (12.84027778) and add it to both sides.

Add '12.84027778' to each side of the equation.
-7.166666667x + 12.84027778 + x2 = 12.5 + 12.84027778

Reorder the terms:
12.84027778 + -7.166666667x + x2 = 12.5 + 12.84027778

Combine like terms: 12.5 + 12.84027778 = 25.34027778
12.84027778 + -7.166666667x + x2 = 25.34027778

Factor a perfect square on the left side:
(x + -3.583333334)(x + -3.583333334) = 25.34027778

Calculate the square root of the right side: 5.03391277

Break this problem into two subproblems by setting 
(x + -3.583333334) equal to 5.03391277 and -5.03391277.

Subproblem 1

x + -3.583333334 = 5.03391277 Simplifying x + -3.583333334 = 5.03391277 Reorder the terms: -3.583333334 + x = 5.03391277 Solving -3.583333334 + x = 5.03391277 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.583333334' to each side of the equation. -3.583333334 + 3.583333334 + x = 5.03391277 + 3.583333334 Combine like terms: -3.583333334 + 3.583333334 = 0.000000000 0.000000000 + x = 5.03391277 + 3.583333334 x = 5.03391277 + 3.583333334 Combine like terms: 5.03391277 + 3.583333334 = 8.617246104 x = 8.617246104 Simplifying x = 8.617246104

Subproblem 2

x + -3.583333334 = -5.03391277 Simplifying x + -3.583333334 = -5.03391277 Reorder the terms: -3.583333334 + x = -5.03391277 Solving -3.583333334 + x = -5.03391277 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.583333334' to each side of the equation. -3.583333334 + 3.583333334 + x = -5.03391277 + 3.583333334 Combine like terms: -3.583333334 + 3.583333334 = 0.000000000 0.000000000 + x = -5.03391277 + 3.583333334 x = -5.03391277 + 3.583333334 Combine like terms: -5.03391277 + 3.583333334 = -1.450579436 x = -1.450579436 Simplifying x = -1.450579436

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.617246104, -1.450579436}

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