3y^2-9y+18=0

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Solution for 3y^2-9y+18=0 equation:


Simplifying
3y2 + -9y + 18 = 0

Reorder the terms:
18 + -9y + 3y2 = 0

Solving
18 + -9y + 3y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '3'.
3(6 + -3y + y2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(6 + -3y + y2)' equal to zero and attempt to solve: Simplifying 6 + -3y + y2 = 0 Solving 6 + -3y + y2 = 0 Begin completing the square. Move the constant term to the right: Add '-6' to each side of the equation. 6 + -3y + -6 + y2 = 0 + -6 Reorder the terms: 6 + -6 + -3y + y2 = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -3y + y2 = 0 + -6 -3y + y2 = 0 + -6 Combine like terms: 0 + -6 = -6 -3y + y2 = -6 The y term is -3y. 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. -3y + 2.25 + y2 = -6 + 2.25 Reorder the terms: 2.25 + -3y + y2 = -6 + 2.25 Combine like terms: -6 + 2.25 = -3.75 2.25 + -3y + y2 = -3.75 Factor a perfect square on the left side: (y + -1.5)(y + -1.5) = -3.75 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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