0=9x^2+5+3x-15-11x^2

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Solution for 0=9x^2+5+3x-15-11x^2 equation:


Simplifying
0 = 9x2 + 5 + 3x + -15 + -11x2

Reorder the terms:
0 = 5 + -15 + 3x + 9x2 + -11x2

Combine like terms: 5 + -15 = -10
0 = -10 + 3x + 9x2 + -11x2

Combine like terms: 9x2 + -11x2 = -2x2
0 = -10 + 3x + -2x2

Solving
0 = -10 + 3x + -2x2

Solving for variable 'x'.

Combine like terms: 0 + 10 = 10
10 + -3x + 2x2 = -10 + 3x + -2x2 + 10 + -3x + 2x2

Reorder the terms:
10 + -3x + 2x2 = -10 + 10 + 3x + -3x + -2x2 + 2x2

Combine like terms: -10 + 10 = 0
10 + -3x + 2x2 = 0 + 3x + -3x + -2x2 + 2x2
10 + -3x + 2x2 = 3x + -3x + -2x2 + 2x2

Combine like terms: 3x + -3x = 0
10 + -3x + 2x2 = 0 + -2x2 + 2x2
10 + -3x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
10 + -3x + 2x2 = 0

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

Divide each side by '2'.
5 + -1.5x + x2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -1.5x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + -1.5x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -1.5x + x2 = 0 + -5
-1.5x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
-1.5x + x2 = -5

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = -5 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = -5 + 0.5625

Combine like terms: -5 + 0.5625 = -4.4375
0.5625 + -1.5x + x2 = -4.4375

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = -4.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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