5=-x^2+2x-9

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Solution for 5=-x^2+2x-9 equation:


Simplifying
5 = -1x2 + 2x + -9

Reorder the terms:
5 = -9 + 2x + -1x2

Solving
5 = -9 + 2x + -1x2

Solving for variable 'x'.

Combine like terms: 5 + 9 = 14
14 + -2x + x2 = -9 + 2x + -1x2 + 9 + -2x + x2

Reorder the terms:
14 + -2x + x2 = -9 + 9 + 2x + -2x + -1x2 + x2

Combine like terms: -9 + 9 = 0
14 + -2x + x2 = 0 + 2x + -2x + -1x2 + x2
14 + -2x + x2 = 2x + -2x + -1x2 + x2

Combine like terms: 2x + -2x = 0
14 + -2x + x2 = 0 + -1x2 + x2
14 + -2x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
14 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -2x + -14 + x2 = 0 + -14

Reorder the terms:
14 + -14 + -2x + x2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -2x + x2 = 0 + -14
-2x + x2 = 0 + -14

Combine like terms: 0 + -14 = -14
-2x + x2 = -14

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 = -14 + 1

Reorder the terms:
1 + -2x + x2 = -14 + 1

Combine like terms: -14 + 1 = -13
1 + -2x + x2 = -13

Factor a perfect square on the left side:
(x + -1)(x + -1) = -13

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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