2y^2-19y+33=0

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Solution for 2y^2-19y+33=0 equation:


Simplifying
2y2 + -19y + 33 = 0

Reorder the terms:
33 + -19y + 2y2 = 0

Solving
33 + -19y + 2y2 = 0

Solving for variable 'y'.

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

Divide each side by '2'.
16.5 + -9.5y + y2 = 0

Move the constant term to the right:

Add '-16.5' to each side of the equation.
16.5 + -9.5y + -16.5 + y2 = 0 + -16.5

Reorder the terms:
16.5 + -16.5 + -9.5y + y2 = 0 + -16.5

Combine like terms: 16.5 + -16.5 = 0.0
0.0 + -9.5y + y2 = 0 + -16.5
-9.5y + y2 = 0 + -16.5

Combine like terms: 0 + -16.5 = -16.5
-9.5y + y2 = -16.5

The y term is -9.5y.  Take half its coefficient (-4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
-9.5y + 22.5625 + y2 = -16.5 + 22.5625

Reorder the terms:
22.5625 + -9.5y + y2 = -16.5 + 22.5625

Combine like terms: -16.5 + 22.5625 = 6.0625
22.5625 + -9.5y + y2 = 6.0625

Factor a perfect square on the left side:
(y + -4.75)(y + -4.75) = 6.0625

Calculate the square root of the right side: 2.46221445

Break this problem into two subproblems by setting 
(y + -4.75) equal to 2.46221445 and -2.46221445.

Subproblem 1

y + -4.75 = 2.46221445 Simplifying y + -4.75 = 2.46221445 Reorder the terms: -4.75 + y = 2.46221445 Solving -4.75 + y = 2.46221445 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + y = 2.46221445 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + y = 2.46221445 + 4.75 y = 2.46221445 + 4.75 Combine like terms: 2.46221445 + 4.75 = 7.21221445 y = 7.21221445 Simplifying y = 7.21221445

Subproblem 2

y + -4.75 = -2.46221445 Simplifying y + -4.75 = -2.46221445 Reorder the terms: -4.75 + y = -2.46221445 Solving -4.75 + y = -2.46221445 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + y = -2.46221445 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + y = -2.46221445 + 4.75 y = -2.46221445 + 4.75 Combine like terms: -2.46221445 + 4.75 = 2.28778555 y = 2.28778555 Simplifying y = 2.28778555

Solution

The solution to the problem is based on the solutions from the subproblems. y = {7.21221445, 2.28778555}

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