x^2+4x+8=2x-1

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Solution for x^2+4x+8=2x-1 equation:


Simplifying
x2 + 4x + 8 = 2x + -1

Reorder the terms:
8 + 4x + x2 = 2x + -1

Reorder the terms:
8 + 4x + x2 = -1 + 2x

Solving
8 + 4x + x2 = -1 + 2x

Solving for variable 'x'.

Reorder the terms:
8 + 1 + 4x + -2x + x2 = -1 + 2x + 1 + -2x

Combine like terms: 8 + 1 = 9
9 + 4x + -2x + x2 = -1 + 2x + 1 + -2x

Combine like terms: 4x + -2x = 2x
9 + 2x + x2 = -1 + 2x + 1 + -2x

Reorder the terms:
9 + 2x + x2 = -1 + 1 + 2x + -2x

Combine like terms: -1 + 1 = 0
9 + 2x + x2 = 0 + 2x + -2x
9 + 2x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
9 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + 2x + -9 + x2 = 0 + -9

Reorder the terms:
9 + -9 + 2x + x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 2x + x2 = 0 + -9
2x + x2 = 0 + -9

Combine like terms: 0 + -9 = -9
2x + x2 = -9

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = -9 + 1

Reorder the terms:
1 + 2x + x2 = -9 + 1

Combine like terms: -9 + 1 = -8
1 + 2x + x2 = -8

Factor a perfect square on the left side:
(x + 1)(x + 1) = -8

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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