x^2+4x+8=3x-16

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Solution for x^2+4x+8=3x-16 equation:


Simplifying
x2 + 4x + 8 = 3x + -16

Reorder the terms:
8 + 4x + x2 = 3x + -16

Reorder the terms:
8 + 4x + x2 = -16 + 3x

Solving
8 + 4x + x2 = -16 + 3x

Solving for variable 'x'.

Reorder the terms:
8 + 16 + 4x + -3x + x2 = -16 + 3x + 16 + -3x

Combine like terms: 8 + 16 = 24
24 + 4x + -3x + x2 = -16 + 3x + 16 + -3x

Combine like terms: 4x + -3x = 1x
24 + 1x + x2 = -16 + 3x + 16 + -3x

Reorder the terms:
24 + 1x + x2 = -16 + 16 + 3x + -3x

Combine like terms: -16 + 16 = 0
24 + 1x + x2 = 0 + 3x + -3x
24 + 1x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
24 + 1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-24' to each side of the equation.
24 + 1x + -24 + x2 = 0 + -24

Reorder the terms:
24 + -24 + 1x + x2 = 0 + -24

Combine like terms: 24 + -24 = 0
0 + 1x + x2 = 0 + -24
1x + x2 = 0 + -24

Combine like terms: 0 + -24 = -24
1x + x2 = -24

The x term is 1x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = -24 + 0.25

Reorder the terms:
0.25 + x + x2 = -24 + 0.25

Combine like terms: -24 + 0.25 = -23.75
0.25 + x + x2 = -23.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -23.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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