-9x^2+27x-27=0

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Solution for -9x^2+27x-27=0 equation:


Simplifying
-9x2 + 27x + -27 = 0

Reorder the terms:
-27 + 27x + -9x2 = 0

Solving
-27 + 27x + -9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '9'.
9(-3 + 3x + -1x2) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(-3 + 3x + -1x2)' equal to zero and attempt to solve: Simplifying -3 + 3x + -1x2 = 0 Solving -3 + 3x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 3 + -3x + x2 = 0 Move the constant term to the right: Add '-3' to each side of the equation. 3 + -3x + -3 + x2 = 0 + -3 Reorder the terms: 3 + -3 + -3x + x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -3x + x2 = 0 + -3 -3x + x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -3x + x2 = -3 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = -3 + 2.25 Reorder the terms: 2.25 + -3x + x2 = -3 + 2.25 Combine like terms: -3 + 2.25 = -0.75 2.25 + -3x + x2 = -0.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = -0.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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