(y*y)-5y-19=6y+1

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Solution for (y*y)-5y-19=6y+1 equation:


Simplifying
(y * y) + -5y + -19 = 6y + 1

Multiply y * y
(y2) + -5y + -19 = 6y + 1
y2 + -5y + -19 = 6y + 1

Reorder the terms:
-19 + -5y + y2 = 6y + 1

Reorder the terms:
-19 + -5y + y2 = 1 + 6y

Solving
-19 + -5y + y2 = 1 + 6y

Solving for variable 'y'.

Reorder the terms:
-19 + -1 + -5y + -6y + y2 = 1 + 6y + -1 + -6y

Combine like terms: -19 + -1 = -20
-20 + -5y + -6y + y2 = 1 + 6y + -1 + -6y

Combine like terms: -5y + -6y = -11y
-20 + -11y + y2 = 1 + 6y + -1 + -6y

Reorder the terms:
-20 + -11y + y2 = 1 + -1 + 6y + -6y

Combine like terms: 1 + -1 = 0
-20 + -11y + y2 = 0 + 6y + -6y
-20 + -11y + y2 = 6y + -6y

Combine like terms: 6y + -6y = 0
-20 + -11y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '20' to each side of the equation.
-20 + -11y + 20 + y2 = 0 + 20

Reorder the terms:
-20 + 20 + -11y + y2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -11y + y2 = 0 + 20
-11y + y2 = 0 + 20

Combine like terms: 0 + 20 = 20
-11y + y2 = 20

The y term is -11y.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11y + 30.25 + y2 = 20 + 30.25

Reorder the terms:
30.25 + -11y + y2 = 20 + 30.25

Combine like terms: 20 + 30.25 = 50.25
30.25 + -11y + y2 = 50.25

Factor a perfect square on the left side:
(y + -5.5)(y + -5.5) = 50.25

Calculate the square root of the right side: 7.088723439

Break this problem into two subproblems by setting 
(y + -5.5) equal to 7.088723439 and -7.088723439.

Subproblem 1

y + -5.5 = 7.088723439 Simplifying y + -5.5 = 7.088723439 Reorder the terms: -5.5 + y = 7.088723439 Solving -5.5 + y = 7.088723439 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + y = 7.088723439 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + y = 7.088723439 + 5.5 y = 7.088723439 + 5.5 Combine like terms: 7.088723439 + 5.5 = 12.588723439 y = 12.588723439 Simplifying y = 12.588723439

Subproblem 2

y + -5.5 = -7.088723439 Simplifying y + -5.5 = -7.088723439 Reorder the terms: -5.5 + y = -7.088723439 Solving -5.5 + y = -7.088723439 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + y = -7.088723439 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + y = -7.088723439 + 5.5 y = -7.088723439 + 5.5 Combine like terms: -7.088723439 + 5.5 = -1.588723439 y = -1.588723439 Simplifying y = -1.588723439

Solution

The solution to the problem is based on the solutions from the subproblems. y = {12.588723439, -1.588723439}

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