6x^2-7x-54=

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Solution for 6x^2-7x-54= equation:


Simplifying
6x2 + -7x + -54 = 0

Reorder the terms:
-54 + -7x + 6x2 = 0

Solving
-54 + -7x + 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'.
-9 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -1.166666667x + 9 + x2 = 0 + 9

Reorder the terms:
-9 + 9 + -1.166666667x + x2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -1.166666667x + x2 = 0 + 9
-1.166666667x + x2 = 0 + 9

Combine like terms: 0 + 9 = 9
-1.166666667x + x2 = 9

The x term is -1.166666667x.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667x + 0.3402777780 + x2 = 9 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = 9 + 0.3402777780

Combine like terms: 9 + 0.3402777780 = 9.340277778
0.3402777780 + -1.166666667x + x2 = 9.340277778

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = 9.340277778

Calculate the square root of the right side: 3.056186804

Break this problem into two subproblems by setting 
(x + -0.5833333335) equal to 3.056186804 and -3.056186804.

Subproblem 1

x + -0.5833333335 = 3.056186804 Simplifying x + -0.5833333335 = 3.056186804 Reorder the terms: -0.5833333335 + x = 3.056186804 Solving -0.5833333335 + x = 3.056186804 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = 3.056186804 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = 3.056186804 + 0.5833333335 x = 3.056186804 + 0.5833333335 Combine like terms: 3.056186804 + 0.5833333335 = 3.6395201375 x = 3.6395201375 Simplifying x = 3.6395201375

Subproblem 2

x + -0.5833333335 = -3.056186804 Simplifying x + -0.5833333335 = -3.056186804 Reorder the terms: -0.5833333335 + x = -3.056186804 Solving -0.5833333335 + x = -3.056186804 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = -3.056186804 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = -3.056186804 + 0.5833333335 x = -3.056186804 + 0.5833333335 Combine like terms: -3.056186804 + 0.5833333335 = -2.4728534705 x = -2.4728534705 Simplifying x = -2.4728534705

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.6395201375, -2.4728534705}

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