2y^2-15y+32-y^2-4y+4=0

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Solution for 2y^2-15y+32-y^2-4y+4=0 equation:


Simplifying
2y2 + -15y + 32 + -1y2 + -4y + 4 = 0

Reorder the terms:
32 + 4 + -15y + -4y + 2y2 + -1y2 = 0

Combine like terms: 32 + 4 = 36
36 + -15y + -4y + 2y2 + -1y2 = 0

Combine like terms: -15y + -4y = -19y
36 + -19y + 2y2 + -1y2 = 0

Combine like terms: 2y2 + -1y2 = 1y2
36 + -19y + 1y2 = 0

Solving
36 + -19y + 1y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + -19y + -36 + y2 = 0 + -36

Reorder the terms:
36 + -36 + -19y + y2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -19y + y2 = 0 + -36
-19y + y2 = 0 + -36

Combine like terms: 0 + -36 = -36
-19y + y2 = -36

The y term is -19y.  Take half its coefficient (-9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
-19y + 90.25 + y2 = -36 + 90.25

Reorder the terms:
90.25 + -19y + y2 = -36 + 90.25

Combine like terms: -36 + 90.25 = 54.25
90.25 + -19y + y2 = 54.25

Factor a perfect square on the left side:
(y + -9.5)(y + -9.5) = 54.25

Calculate the square root of the right side: 7.365459931

Break this problem into two subproblems by setting 
(y + -9.5) equal to 7.365459931 and -7.365459931.

Subproblem 1

y + -9.5 = 7.365459931 Simplifying y + -9.5 = 7.365459931 Reorder the terms: -9.5 + y = 7.365459931 Solving -9.5 + y = 7.365459931 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + y = 7.365459931 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + y = 7.365459931 + 9.5 y = 7.365459931 + 9.5 Combine like terms: 7.365459931 + 9.5 = 16.865459931 y = 16.865459931 Simplifying y = 16.865459931

Subproblem 2

y + -9.5 = -7.365459931 Simplifying y + -9.5 = -7.365459931 Reorder the terms: -9.5 + y = -7.365459931 Solving -9.5 + y = -7.365459931 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + y = -7.365459931 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + y = -7.365459931 + 9.5 y = -7.365459931 + 9.5 Combine like terms: -7.365459931 + 9.5 = 2.134540069 y = 2.134540069 Simplifying y = 2.134540069

Solution

The solution to the problem is based on the solutions from the subproblems. y = {16.865459931, 2.134540069}

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