0=-6x^2-7x-8

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Solution for 0=-6x^2-7x-8 equation:


Simplifying
0 = -6x2 + -7x + -8

Reorder the terms:
0 = -8 + -7x + -6x2

Solving
0 = -8 + -7x + -6x2

Solving for variable 'x'.

Combine like terms: 0 + 8 = 8
8 + 7x + 6x2 = -8 + -7x + -6x2 + 8 + 7x + 6x2

Reorder the terms:
8 + 7x + 6x2 = -8 + 8 + -7x + 7x + -6x2 + 6x2

Combine like terms: -8 + 8 = 0
8 + 7x + 6x2 = 0 + -7x + 7x + -6x2 + 6x2
8 + 7x + 6x2 = -7x + 7x + -6x2 + 6x2

Combine like terms: -7x + 7x = 0
8 + 7x + 6x2 = 0 + -6x2 + 6x2
8 + 7x + 6x2 = -6x2 + 6x2

Combine like terms: -6x2 + 6x2 = 0
8 + 7x + 6x2 = 0

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

Divide each side by '6'.
1.333333333 + 1.166666667x + x2 = 0

Move the constant term to the right:

Add '-1.333333333' to each side of the equation.
1.333333333 + 1.166666667x + -1.333333333 + x2 = 0 + -1.333333333

Reorder the terms:
1.333333333 + -1.333333333 + 1.166666667x + x2 = 0 + -1.333333333

Combine like terms: 1.333333333 + -1.333333333 = 0.000000000
0.000000000 + 1.166666667x + x2 = 0 + -1.333333333
1.166666667x + x2 = 0 + -1.333333333

Combine like terms: 0 + -1.333333333 = -1.333333333
1.166666667x + x2 = -1.333333333

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 = -1.333333333 + 0.3402777780

Reorder the terms:
0.3402777780 + 1.166666667x + x2 = -1.333333333 + 0.3402777780

Combine like terms: -1.333333333 + 0.3402777780 = -0.993055555
0.3402777780 + 1.166666667x + x2 = -0.993055555

Factor a perfect square on the left side:
(x + 0.5833333335)(x + 0.5833333335) = -0.993055555

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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