(x^2+6x+9)+(x^2+4x+4)=

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Solution for (x^2+6x+9)+(x^2+4x+4)= equation:


Simplifying
(x2 + 6x + 9) + (x2 + 4x + 4) = 0

Reorder the terms:
(9 + 6x + x2) + (x2 + 4x + 4) = 0

Remove parenthesis around (9 + 6x + x2)
9 + 6x + x2 + (x2 + 4x + 4) = 0

Reorder the terms:
9 + 6x + x2 + (4 + 4x + x2) = 0

Remove parenthesis around (4 + 4x + x2)
9 + 6x + x2 + 4 + 4x + x2 = 0

Reorder the terms:
9 + 4 + 6x + 4x + x2 + x2 = 0

Combine like terms: 9 + 4 = 13
13 + 6x + 4x + x2 + x2 = 0

Combine like terms: 6x + 4x = 10x
13 + 10x + x2 + x2 = 0

Combine like terms: x2 + x2 = 2x2
13 + 10x + 2x2 = 0

Solving
13 + 10x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
6.5 + 5x + x2 = 0

Move the constant term to the right:

Add '-6.5' to each side of the equation.
6.5 + 5x + -6.5 + x2 = 0 + -6.5

Reorder the terms:
6.5 + -6.5 + 5x + x2 = 0 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + 5x + x2 = 0 + -6.5
5x + x2 = 0 + -6.5

Combine like terms: 0 + -6.5 = -6.5
5x + x2 = -6.5

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -6.5 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -6.5 + 6.25

Combine like terms: -6.5 + 6.25 = -0.25
6.25 + 5x + x2 = -0.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = -0.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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