9y^2-24y+8=0

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Solution for 9y^2-24y+8=0 equation:


Simplifying
9y2 + -24y + 8 = 0

Reorder the terms:
8 + -24y + 9y2 = 0

Solving
8 + -24y + 9y2 = 0

Solving for variable 'y'.

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

Divide each side by '9'.
0.8888888889 + -2.666666667y + y2 = 0

Move the constant term to the right:

Add '-0.8888888889' to each side of the equation.
0.8888888889 + -2.666666667y + -0.8888888889 + y2 = 0 + -0.8888888889

Reorder the terms:
0.8888888889 + -0.8888888889 + -2.666666667y + y2 = 0 + -0.8888888889

Combine like terms: 0.8888888889 + -0.8888888889 = 0.0000000000
0.0000000000 + -2.666666667y + y2 = 0 + -0.8888888889
-2.666666667y + y2 = 0 + -0.8888888889

Combine like terms: 0 + -0.8888888889 = -0.8888888889
-2.666666667y + y2 = -0.8888888889

The y term is -2.666666667y.  Take half its coefficient (-1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
-2.666666667y + 1.777777780 + y2 = -0.8888888889 + 1.777777780

Reorder the terms:
1.777777780 + -2.666666667y + y2 = -0.8888888889 + 1.777777780

Combine like terms: -0.8888888889 + 1.777777780 = 0.8888888911
1.777777780 + -2.666666667y + y2 = 0.8888888911

Factor a perfect square on the left side:
(y + -1.333333334)(y + -1.333333334) = 0.8888888911

Calculate the square root of the right side: 0.942809043

Break this problem into two subproblems by setting 
(y + -1.333333334) equal to 0.942809043 and -0.942809043.

Subproblem 1

y + -1.333333334 = 0.942809043 Simplifying y + -1.333333334 = 0.942809043 Reorder the terms: -1.333333334 + y = 0.942809043 Solving -1.333333334 + y = 0.942809043 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + y = 0.942809043 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + y = 0.942809043 + 1.333333334 y = 0.942809043 + 1.333333334 Combine like terms: 0.942809043 + 1.333333334 = 2.276142377 y = 2.276142377 Simplifying y = 2.276142377

Subproblem 2

y + -1.333333334 = -0.942809043 Simplifying y + -1.333333334 = -0.942809043 Reorder the terms: -1.333333334 + y = -0.942809043 Solving -1.333333334 + y = -0.942809043 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + y = -0.942809043 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + y = -0.942809043 + 1.333333334 y = -0.942809043 + 1.333333334 Combine like terms: -0.942809043 + 1.333333334 = 0.390524291 y = 0.390524291 Simplifying y = 0.390524291

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.276142377, 0.390524291}

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