8x-40=6x^2-5x+100

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Solution for 8x-40=6x^2-5x+100 equation:


Simplifying
8x + -40 = 6x2 + -5x + 100

Reorder the terms:
-40 + 8x = 6x2 + -5x + 100

Reorder the terms:
-40 + 8x = 100 + -5x + 6x2

Solving
-40 + 8x = 100 + -5x + 6x2

Solving for variable 'x'.

Reorder the terms:
-40 + -100 + 8x + 5x + -6x2 = 100 + -5x + 6x2 + -100 + 5x + -6x2

Combine like terms: -40 + -100 = -140
-140 + 8x + 5x + -6x2 = 100 + -5x + 6x2 + -100 + 5x + -6x2

Combine like terms: 8x + 5x = 13x
-140 + 13x + -6x2 = 100 + -5x + 6x2 + -100 + 5x + -6x2

Reorder the terms:
-140 + 13x + -6x2 = 100 + -100 + -5x + 5x + 6x2 + -6x2

Combine like terms: 100 + -100 = 0
-140 + 13x + -6x2 = 0 + -5x + 5x + 6x2 + -6x2
-140 + 13x + -6x2 = -5x + 5x + 6x2 + -6x2

Combine like terms: -5x + 5x = 0
-140 + 13x + -6x2 = 0 + 6x2 + -6x2
-140 + 13x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
-140 + 13x + -6x2 = 0

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

Divide each side by '-6'.
23.33333333 + -2.166666667x + x2 = 0

Move the constant term to the right:

Add '-23.33333333' to each side of the equation.
23.33333333 + -2.166666667x + -23.33333333 + x2 = 0 + -23.33333333

Reorder the terms:
23.33333333 + -23.33333333 + -2.166666667x + x2 = 0 + -23.33333333

Combine like terms: 23.33333333 + -23.33333333 = 0.00000000
0.00000000 + -2.166666667x + x2 = 0 + -23.33333333
-2.166666667x + x2 = 0 + -23.33333333

Combine like terms: 0 + -23.33333333 = -23.33333333
-2.166666667x + x2 = -23.33333333

The x term is -2.166666667x.  Take half its coefficient (-1.083333334).
Square it (1.173611113) and add it to both sides.

Add '1.173611113' to each side of the equation.
-2.166666667x + 1.173611113 + x2 = -23.33333333 + 1.173611113

Reorder the terms:
1.173611113 + -2.166666667x + x2 = -23.33333333 + 1.173611113

Combine like terms: -23.33333333 + 1.173611113 = -22.159722217
1.173611113 + -2.166666667x + x2 = -22.159722217

Factor a perfect square on the left side:
(x + -1.083333334)(x + -1.083333334) = -22.159722217

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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