(-x^2)+6x-15=0

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Solution for (-x^2)+6x-15=0 equation:


Simplifying
(-1x2) + 6x + -15 = 0

Reorder the terms:
-15 + 6x + (-1x2) = 0

Solving
-15 + 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'.
15 + -6x + x2 = 0

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -6x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + -6x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -6x + x2 = 0 + -15
-6x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
-6x + x2 = -15

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 = -15 + 9

Reorder the terms:
9 + -6x + x2 = -15 + 9

Combine like terms: -15 + 9 = -6
9 + -6x + x2 = -6

Factor a perfect square on the left side:
((x) + -3)((x) + -3) = -6

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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