5y^2-32y-2=

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Solution for 5y^2-32y-2= equation:


Simplifying
5y2 + -32y + -2 = 0

Reorder the terms:
-2 + -32y + 5y2 = 0

Solving
-2 + -32y + 5y2 = 0

Solving for variable 'y'.

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

Divide each side by '5'.
-0.4 + -6.4y + y2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + -6.4y + 0.4 + y2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + -6.4y + y2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + -6.4y + y2 = 0 + 0.4
-6.4y + y2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
-6.4y + y2 = 0.4

The y term is -6.4y.  Take half its coefficient (-3.2).
Square it (10.24) and add it to both sides.

Add '10.24' to each side of the equation.
-6.4y + 10.24 + y2 = 0.4 + 10.24

Reorder the terms:
10.24 + -6.4y + y2 = 0.4 + 10.24

Combine like terms: 0.4 + 10.24 = 10.64
10.24 + -6.4y + y2 = 10.64

Factor a perfect square on the left side:
(y + -3.2)(y + -3.2) = 10.64

Calculate the square root of the right side: 3.261901286

Break this problem into two subproblems by setting 
(y + -3.2) equal to 3.261901286 and -3.261901286.

Subproblem 1

y + -3.2 = 3.261901286 Simplifying y + -3.2 = 3.261901286 Reorder the terms: -3.2 + y = 3.261901286 Solving -3.2 + y = 3.261901286 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + y = 3.261901286 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + y = 3.261901286 + 3.2 y = 3.261901286 + 3.2 Combine like terms: 3.261901286 + 3.2 = 6.461901286 y = 6.461901286 Simplifying y = 6.461901286

Subproblem 2

y + -3.2 = -3.261901286 Simplifying y + -3.2 = -3.261901286 Reorder the terms: -3.2 + y = -3.261901286 Solving -3.2 + y = -3.261901286 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + y = -3.261901286 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + y = -3.261901286 + 3.2 y = -3.261901286 + 3.2 Combine like terms: -3.261901286 + 3.2 = -0.061901286 y = -0.061901286 Simplifying y = -0.061901286

Solution

The solution to the problem is based on the solutions from the subproblems. y = {6.461901286, -0.061901286}

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