6x^2-47x-75=0

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Solution for 6x^2-47x-75=0 equation:


Simplifying
6x2 + -47x + -75 = 0

Reorder the terms:
-75 + -47x + 6x2 = 0

Solving
-75 + -47x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-12.5 + -7.833333333x + x2 = 0

Move the constant term to the right:

Add '12.5' to each side of the equation.
-12.5 + -7.833333333x + 12.5 + x2 = 0 + 12.5

Reorder the terms:
-12.5 + 12.5 + -7.833333333x + x2 = 0 + 12.5

Combine like terms: -12.5 + 12.5 = 0.0
0.0 + -7.833333333x + x2 = 0 + 12.5
-7.833333333x + x2 = 0 + 12.5

Combine like terms: 0 + 12.5 = 12.5
-7.833333333x + x2 = 12.5

The x term is -7.833333333x.  Take half its coefficient (-3.916666667).
Square it (15.34027778) and add it to both sides.

Add '15.34027778' to each side of the equation.
-7.833333333x + 15.34027778 + x2 = 12.5 + 15.34027778

Reorder the terms:
15.34027778 + -7.833333333x + x2 = 12.5 + 15.34027778

Combine like terms: 12.5 + 15.34027778 = 27.84027778
15.34027778 + -7.833333333x + x2 = 27.84027778

Factor a perfect square on the left side:
(x + -3.916666667)(x + -3.916666667) = 27.84027778

Calculate the square root of the right side: 5.276388706

Break this problem into two subproblems by setting 
(x + -3.916666667) equal to 5.276388706 and -5.276388706.

Subproblem 1

x + -3.916666667 = 5.276388706 Simplifying x + -3.916666667 = 5.276388706 Reorder the terms: -3.916666667 + x = 5.276388706 Solving -3.916666667 + x = 5.276388706 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.916666667' to each side of the equation. -3.916666667 + 3.916666667 + x = 5.276388706 + 3.916666667 Combine like terms: -3.916666667 + 3.916666667 = 0.000000000 0.000000000 + x = 5.276388706 + 3.916666667 x = 5.276388706 + 3.916666667 Combine like terms: 5.276388706 + 3.916666667 = 9.193055373 x = 9.193055373 Simplifying x = 9.193055373

Subproblem 2

x + -3.916666667 = -5.276388706 Simplifying x + -3.916666667 = -5.276388706 Reorder the terms: -3.916666667 + x = -5.276388706 Solving -3.916666667 + x = -5.276388706 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.916666667' to each side of the equation. -3.916666667 + 3.916666667 + x = -5.276388706 + 3.916666667 Combine like terms: -3.916666667 + 3.916666667 = 0.000000000 0.000000000 + x = -5.276388706 + 3.916666667 x = -5.276388706 + 3.916666667 Combine like terms: -5.276388706 + 3.916666667 = -1.359722039 x = -1.359722039 Simplifying x = -1.359722039

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.193055373, -1.359722039}

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