10y^2-33y-14=0

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Solution for 10y^2-33y-14=0 equation:


Simplifying
10y2 + -33y + -14 = 0

Reorder the terms:
-14 + -33y + 10y2 = 0

Solving
-14 + -33y + 10y2 = 0

Solving for variable 'y'.

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

Divide each side by '10'.
-1.4 + -3.3y + y2 = 0

Move the constant term to the right:

Add '1.4' to each side of the equation.
-1.4 + -3.3y + 1.4 + y2 = 0 + 1.4

Reorder the terms:
-1.4 + 1.4 + -3.3y + y2 = 0 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + -3.3y + y2 = 0 + 1.4
-3.3y + y2 = 0 + 1.4

Combine like terms: 0 + 1.4 = 1.4
-3.3y + y2 = 1.4

The y term is -3.3y.  Take half its coefficient (-1.65).
Square it (2.7225) and add it to both sides.

Add '2.7225' to each side of the equation.
-3.3y + 2.7225 + y2 = 1.4 + 2.7225

Reorder the terms:
2.7225 + -3.3y + y2 = 1.4 + 2.7225

Combine like terms: 1.4 + 2.7225 = 4.1225
2.7225 + -3.3y + y2 = 4.1225

Factor a perfect square on the left side:
(y + -1.65)(y + -1.65) = 4.1225

Calculate the square root of the right side: 2.03039405

Break this problem into two subproblems by setting 
(y + -1.65) equal to 2.03039405 and -2.03039405.

Subproblem 1

y + -1.65 = 2.03039405 Simplifying y + -1.65 = 2.03039405 Reorder the terms: -1.65 + y = 2.03039405 Solving -1.65 + y = 2.03039405 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.65' to each side of the equation. -1.65 + 1.65 + y = 2.03039405 + 1.65 Combine like terms: -1.65 + 1.65 = 0.00 0.00 + y = 2.03039405 + 1.65 y = 2.03039405 + 1.65 Combine like terms: 2.03039405 + 1.65 = 3.68039405 y = 3.68039405 Simplifying y = 3.68039405

Subproblem 2

y + -1.65 = -2.03039405 Simplifying y + -1.65 = -2.03039405 Reorder the terms: -1.65 + y = -2.03039405 Solving -1.65 + y = -2.03039405 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.65' to each side of the equation. -1.65 + 1.65 + y = -2.03039405 + 1.65 Combine like terms: -1.65 + 1.65 = 0.00 0.00 + y = -2.03039405 + 1.65 y = -2.03039405 + 1.65 Combine like terms: -2.03039405 + 1.65 = -0.38039405 y = -0.38039405 Simplifying y = -0.38039405

Solution

The solution to the problem is based on the solutions from the subproblems. y = {3.68039405, -0.38039405}

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