(-x^2)+6x-5=12

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Solution for (-x^2)+6x-5=12 equation:


Simplifying
(-1x2) + 6x + -5 = 12

Reorder the terms:
-5 + 6x + (-1x2) = 12

Solving
-5 + 6x + (-1x2) = 12

Solving for variable 'x'.

Reorder the terms:
-5 + -12 + 6x + (-1x2) = 12 + -12

Combine like terms: -5 + -12 = -17
-17 + 6x + (-1x2) = 12 + -12

Combine like terms: 12 + -12 = 0
-17 + 6x + (-1x2) = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
17 + -6x + x2 = 0

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + -6x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + -6x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -6x + x2 = 0 + -17
-6x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
-6x + x2 = -17

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -17 + 9

Reorder the terms:
9 + -6x + x2 = -17 + 9

Combine like terms: -17 + 9 = -8
9 + -6x + x2 = -8

Factor a perfect square on the left side:
((x) + -3)((x) + -3) = -8

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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