2x(x+4)+3x=-22

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Solution for 2x(x+4)+3x=-22 equation:


Simplifying
2x(x + 4) + 3x = -22

Reorder the terms:
2x(4 + x) + 3x = -22
(4 * 2x + x * 2x) + 3x = -22
(8x + 2x2) + 3x = -22

Reorder the terms:
8x + 3x + 2x2 = -22

Combine like terms: 8x + 3x = 11x
11x + 2x2 = -22

Solving
11x + 2x2 = -22

Solving for variable 'x'.

Reorder the terms:
22 + 11x + 2x2 = -22 + 22

Combine like terms: -22 + 22 = 0
22 + 11x + 2x2 = 0

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

Divide each side by '2'.
11 + 5.5x + x2 = 0

Move the constant term to the right:

Add '-11' to each side of the equation.
11 + 5.5x + -11 + x2 = 0 + -11

Reorder the terms:
11 + -11 + 5.5x + x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 5.5x + x2 = 0 + -11
5.5x + x2 = 0 + -11

Combine like terms: 0 + -11 = -11
5.5x + x2 = -11

The x term is 5.5x.  Take half its coefficient (2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
5.5x + 7.5625 + x2 = -11 + 7.5625

Reorder the terms:
7.5625 + 5.5x + x2 = -11 + 7.5625

Combine like terms: -11 + 7.5625 = -3.4375
7.5625 + 5.5x + x2 = -3.4375

Factor a perfect square on the left side:
(x + 2.75)(x + 2.75) = -3.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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