-6x^2+41x=39

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Solution for -6x^2+41x=39 equation:


Simplifying
-6x2 + 41x = 39

Reorder the terms:
41x + -6x2 = 39

Solving
41x + -6x2 = 39

Solving for variable 'x'.

Reorder the terms:
-39 + 41x + -6x2 = 39 + -39

Combine like terms: 39 + -39 = 0
-39 + 41x + -6x2 = 0

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

Divide each side by '-6'.
6.5 + -6.833333333x + x2 = 0

Move the constant term to the right:

Add '-6.5' to each side of the equation.
6.5 + -6.833333333x + -6.5 + x2 = 0 + -6.5

Reorder the terms:
6.5 + -6.5 + -6.833333333x + x2 = 0 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + -6.833333333x + x2 = 0 + -6.5
-6.833333333x + x2 = 0 + -6.5

Combine like terms: 0 + -6.5 = -6.5
-6.833333333x + x2 = -6.5

The x term is -6.833333333x.  Take half its coefficient (-3.416666667).
Square it (11.67361111) and add it to both sides.

Add '11.67361111' to each side of the equation.
-6.833333333x + 11.67361111 + x2 = -6.5 + 11.67361111

Reorder the terms:
11.67361111 + -6.833333333x + x2 = -6.5 + 11.67361111

Combine like terms: -6.5 + 11.67361111 = 5.17361111
11.67361111 + -6.833333333x + x2 = 5.17361111

Factor a perfect square on the left side:
(x + -3.416666667)(x + -3.416666667) = 5.17361111

Calculate the square root of the right side: 2.274557344

Break this problem into two subproblems by setting 
(x + -3.416666667) equal to 2.274557344 and -2.274557344.

Subproblem 1

x + -3.416666667 = 2.274557344 Simplifying x + -3.416666667 = 2.274557344 Reorder the terms: -3.416666667 + x = 2.274557344 Solving -3.416666667 + x = 2.274557344 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.416666667' to each side of the equation. -3.416666667 + 3.416666667 + x = 2.274557344 + 3.416666667 Combine like terms: -3.416666667 + 3.416666667 = 0.000000000 0.000000000 + x = 2.274557344 + 3.416666667 x = 2.274557344 + 3.416666667 Combine like terms: 2.274557344 + 3.416666667 = 5.691224011 x = 5.691224011 Simplifying x = 5.691224011

Subproblem 2

x + -3.416666667 = -2.274557344 Simplifying x + -3.416666667 = -2.274557344 Reorder the terms: -3.416666667 + x = -2.274557344 Solving -3.416666667 + x = -2.274557344 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.416666667' to each side of the equation. -3.416666667 + 3.416666667 + x = -2.274557344 + 3.416666667 Combine like terms: -3.416666667 + 3.416666667 = 0.000000000 0.000000000 + x = -2.274557344 + 3.416666667 x = -2.274557344 + 3.416666667 Combine like terms: -2.274557344 + 3.416666667 = 1.142109323 x = 1.142109323 Simplifying x = 1.142109323

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.691224011, 1.142109323}

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