2(10x^2+8-3x^2+8x)+(20x^2-(x+11)+4)=

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Solution for 2(10x^2+8-3x^2+8x)+(20x^2-(x+11)+4)= equation:


Simplifying
2(10x2 + 8 + -3x2 + 8x) + (20x2 + -1(x + 11) + 4) = 0

Reorder the terms:
2(8 + 8x + 10x2 + -3x2) + (20x2 + -1(x + 11) + 4) = 0

Combine like terms: 10x2 + -3x2 = 7x2
2(8 + 8x + 7x2) + (20x2 + -1(x + 11) + 4) = 0
(8 * 2 + 8x * 2 + 7x2 * 2) + (20x2 + -1(x + 11) + 4) = 0
(16 + 16x + 14x2) + (20x2 + -1(x + 11) + 4) = 0

Reorder the terms:
16 + 16x + 14x2 + (20x2 + -1(11 + x) + 4) = 0
16 + 16x + 14x2 + (20x2 + (11 * -1 + x * -1) + 4) = 0
16 + 16x + 14x2 + (20x2 + (-11 + -1x) + 4) = 0

Reorder the terms:
16 + 16x + 14x2 + (-11 + 4 + -1x + 20x2) = 0

Combine like terms: -11 + 4 = -7
16 + 16x + 14x2 + (-7 + -1x + 20x2) = 0

Remove parenthesis around (-7 + -1x + 20x2)
16 + 16x + 14x2 + -7 + -1x + 20x2 = 0

Reorder the terms:
16 + -7 + 16x + -1x + 14x2 + 20x2 = 0

Combine like terms: 16 + -7 = 9
9 + 16x + -1x + 14x2 + 20x2 = 0

Combine like terms: 16x + -1x = 15x
9 + 15x + 14x2 + 20x2 = 0

Combine like terms: 14x2 + 20x2 = 34x2
9 + 15x + 34x2 = 0

Solving
9 + 15x + 34x2 = 0

Solving for variable 'x'.

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

Divide each side by '34'.
0.2647058824 + 0.4411764706x + x2 = 0

Move the constant term to the right:

Add '-0.2647058824' to each side of the equation.
0.2647058824 + 0.4411764706x + -0.2647058824 + x2 = 0 + -0.2647058824

Reorder the terms:
0.2647058824 + -0.2647058824 + 0.4411764706x + x2 = 0 + -0.2647058824

Combine like terms: 0.2647058824 + -0.2647058824 = 0.0000000000
0.0000000000 + 0.4411764706x + x2 = 0 + -0.2647058824
0.4411764706x + x2 = 0 + -0.2647058824

Combine like terms: 0 + -0.2647058824 = -0.2647058824
0.4411764706x + x2 = -0.2647058824

The x term is 0.4411764706x.  Take half its coefficient (0.2205882353).
Square it (0.04865916955) and add it to both sides.

Add '0.04865916955' to each side of the equation.
0.4411764706x + 0.04865916955 + x2 = -0.2647058824 + 0.04865916955

Reorder the terms:
0.04865916955 + 0.4411764706x + x2 = -0.2647058824 + 0.04865916955

Combine like terms: -0.2647058824 + 0.04865916955 = -0.21604671285
0.04865916955 + 0.4411764706x + x2 = -0.21604671285

Factor a perfect square on the left side:
(x + 0.2205882353)(x + 0.2205882353) = -0.21604671285

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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