(x^2-3x+5)+(2x^2+11x+1)=

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Solution for (x^2-3x+5)+(2x^2+11x+1)= equation:


Simplifying
(x2 + -3x + 5) + (2x2 + 11x + 1) = 0

Reorder the terms:
(5 + -3x + x2) + (2x2 + 11x + 1) = 0

Remove parenthesis around (5 + -3x + x2)
5 + -3x + x2 + (2x2 + 11x + 1) = 0

Reorder the terms:
5 + -3x + x2 + (1 + 11x + 2x2) = 0

Remove parenthesis around (1 + 11x + 2x2)
5 + -3x + x2 + 1 + 11x + 2x2 = 0

Reorder the terms:
5 + 1 + -3x + 11x + x2 + 2x2 = 0

Combine like terms: 5 + 1 = 6
6 + -3x + 11x + x2 + 2x2 = 0

Combine like terms: -3x + 11x = 8x
6 + 8x + x2 + 2x2 = 0

Combine like terms: x2 + 2x2 = 3x2
6 + 8x + 3x2 = 0

Solving
6 + 8x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
2 + 2.666666667x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 2.666666667x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + 2.666666667x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 2.666666667x + x2 = 0 + -2
2.666666667x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
2.666666667x + x2 = -2

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 = -2 + 1.777777780

Reorder the terms:
1.777777780 + 2.666666667x + x2 = -2 + 1.777777780

Combine like terms: -2 + 1.777777780 = -0.22222222
1.777777780 + 2.666666667x + x2 = -0.22222222

Factor a perfect square on the left side:
(x + 1.333333334)(x + 1.333333334) = -0.22222222

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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