6x^2-49x-30=0

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Solution for 6x^2-49x-30=0 equation:


Simplifying
6x2 + -49x + -30 = 0

Reorder the terms:
-30 + -49x + 6x2 = 0

Solving
-30 + -49x + 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'.
-5 + -8.166666667x + x2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -8.166666667x + 5 + x2 = 0 + 5

Reorder the terms:
-5 + 5 + -8.166666667x + x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -8.166666667x + x2 = 0 + 5
-8.166666667x + x2 = 0 + 5

Combine like terms: 0 + 5 = 5
-8.166666667x + x2 = 5

The x term is -8.166666667x.  Take half its coefficient (-4.083333334).
Square it (16.67361112) and add it to both sides.

Add '16.67361112' to each side of the equation.
-8.166666667x + 16.67361112 + x2 = 5 + 16.67361112

Reorder the terms:
16.67361112 + -8.166666667x + x2 = 5 + 16.67361112

Combine like terms: 5 + 16.67361112 = 21.67361112
16.67361112 + -8.166666667x + x2 = 21.67361112

Factor a perfect square on the left side:
(x + -4.083333334)(x + -4.083333334) = 21.67361112

Calculate the square root of the right side: 4.655492575

Break this problem into two subproblems by setting 
(x + -4.083333334) equal to 4.655492575 and -4.655492575.

Subproblem 1

x + -4.083333334 = 4.655492575 Simplifying x + -4.083333334 = 4.655492575 Reorder the terms: -4.083333334 + x = 4.655492575 Solving -4.083333334 + x = 4.655492575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.083333334' to each side of the equation. -4.083333334 + 4.083333334 + x = 4.655492575 + 4.083333334 Combine like terms: -4.083333334 + 4.083333334 = 0.000000000 0.000000000 + x = 4.655492575 + 4.083333334 x = 4.655492575 + 4.083333334 Combine like terms: 4.655492575 + 4.083333334 = 8.738825909 x = 8.738825909 Simplifying x = 8.738825909

Subproblem 2

x + -4.083333334 = -4.655492575 Simplifying x + -4.083333334 = -4.655492575 Reorder the terms: -4.083333334 + x = -4.655492575 Solving -4.083333334 + x = -4.655492575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.083333334' to each side of the equation. -4.083333334 + 4.083333334 + x = -4.655492575 + 4.083333334 Combine like terms: -4.083333334 + 4.083333334 = 0.000000000 0.000000000 + x = -4.655492575 + 4.083333334 x = -4.655492575 + 4.083333334 Combine like terms: -4.655492575 + 4.083333334 = -0.572159241 x = -0.572159241 Simplifying x = -0.572159241

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.738825909, -0.572159241}

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