15x^2-10x-3x^2+8+11x=

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Solution for 15x^2-10x-3x^2+8+11x= equation:


Simplifying
15x2 + -10x + -3x2 + 8 + 11x = 0

Reorder the terms:
8 + -10x + 11x + 15x2 + -3x2 = 0

Combine like terms: -10x + 11x = 1x
8 + 1x + 15x2 + -3x2 = 0

Combine like terms: 15x2 + -3x2 = 12x2
8 + 1x + 12x2 = 0

Solving
8 + 1x + 12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
0.6666666667 + 0.08333333333x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + 0.08333333333x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + 0.08333333333x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + 0.08333333333x + x2 = 0 + -0.6666666667
0.08333333333x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
0.08333333333x + x2 = -0.6666666667

The x term is 0.08333333333x.  Take half its coefficient (0.04166666667).
Square it (0.001736111111) and add it to both sides.

Add '0.001736111111' to each side of the equation.
0.08333333333x + 0.001736111111 + x2 = -0.6666666667 + 0.001736111111

Reorder the terms:
0.001736111111 + 0.08333333333x + x2 = -0.6666666667 + 0.001736111111

Combine like terms: -0.6666666667 + 0.001736111111 = -0.664930555589
0.001736111111 + 0.08333333333x + x2 = -0.664930555589

Factor a perfect square on the left side:
(x + 0.04166666667)(x + 0.04166666667) = -0.664930555589

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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