-x^2+6x-172=0

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Solution for -x^2+6x-172=0 equation:


Simplifying
-1x2 + 6x + -172 = 0

Reorder the terms:
-172 + 6x + -1x2 = 0

Solving
-172 + 6x + -1x2 = 0

Solving for variable 'x'.

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

Divide each side by '-1'.
172 + -6x + x2 = 0

Move the constant term to the right:

Add '-172' to each side of the equation.
172 + -6x + -172 + x2 = 0 + -172

Reorder the terms:
172 + -172 + -6x + x2 = 0 + -172

Combine like terms: 172 + -172 = 0
0 + -6x + x2 = 0 + -172
-6x + x2 = 0 + -172

Combine like terms: 0 + -172 = -172
-6x + x2 = -172

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 = -172 + 9

Reorder the terms:
9 + -6x + x2 = -172 + 9

Combine like terms: -172 + 9 = -163
9 + -6x + x2 = -163

Factor a perfect square on the left side:
(x + -3)(x + -3) = -163

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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