-3x+6=-x^2+4x-8

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Solution for -3x+6=-x^2+4x-8 equation:


Simplifying
-3x + 6 = -1x2 + 4x + -8

Reorder the terms:
6 + -3x = -1x2 + 4x + -8

Reorder the terms:
6 + -3x = -8 + 4x + -1x2

Solving
6 + -3x = -8 + 4x + -1x2

Solving for variable 'x'.

Reorder the terms:
6 + 8 + -3x + -4x + x2 = -8 + 4x + -1x2 + 8 + -4x + x2

Combine like terms: 6 + 8 = 14
14 + -3x + -4x + x2 = -8 + 4x + -1x2 + 8 + -4x + x2

Combine like terms: -3x + -4x = -7x
14 + -7x + x2 = -8 + 4x + -1x2 + 8 + -4x + x2

Reorder the terms:
14 + -7x + x2 = -8 + 8 + 4x + -4x + -1x2 + x2

Combine like terms: -8 + 8 = 0
14 + -7x + x2 = 0 + 4x + -4x + -1x2 + x2
14 + -7x + x2 = 4x + -4x + -1x2 + x2

Combine like terms: 4x + -4x = 0
14 + -7x + x2 = 0 + -1x2 + x2
14 + -7x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
14 + -7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -7x + -14 + x2 = 0 + -14

Reorder the terms:
14 + -14 + -7x + x2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -7x + x2 = 0 + -14
-7x + x2 = 0 + -14

Combine like terms: 0 + -14 = -14
-7x + x2 = -14

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = -14 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -14 + 12.25

Combine like terms: -14 + 12.25 = -1.75
12.25 + -7x + x2 = -1.75

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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