3x^2-8x=-20

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Solution for 3x^2-8x=-20 equation: 


Simplifying
3x2 + -8x = -20

Reorder the terms:
-8x + 3x2 = -20

Solving
-8x + 3x2 = -20

Solving for variable 'x'.

Reorder the terms:
20 + -8x + 3x2 = -20 + 20

Combine like terms: -20 + 20 = 0
20 + -8x + 3x2 = 0

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

Divide each side by '3'.
6.666666667 + -2.666666667x + x2 = 0

Move the constant term to the right:

Add '-6.666666667' to each side of the equation.
6.666666667 + -2.666666667x + -6.666666667 + x2 = 0 + -6.666666667

Reorder the terms:
6.666666667 + -6.666666667 + -2.666666667x + x2 = 0 + -6.666666667

Combine like terms: 6.666666667 + -6.666666667 = 0.000000000
0.000000000 + -2.666666667x + x2 = 0 + -6.666666667
-2.666666667x + x2 = 0 + -6.666666667

Combine like terms: 0 + -6.666666667 = -6.666666667
-2.666666667x + x2 = -6.666666667

The x term is -2.666666667x.  Take half its coefficient (-1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
-2.666666667x + 1.777777780 + x2 = -6.666666667 + 1.777777780

Reorder the terms:
1.777777780 + -2.666666667x + x2 = -6.666666667 + 1.777777780

Combine like terms: -6.666666667 + 1.777777780 = -4.888888887
1.777777780 + -2.666666667x + x2 = -4.888888887

Factor a perfect square on the left side:
(x + -1.333333334)(x + -1.333333334) = -4.888888887

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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