10y^2-19y-14=0

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Solution for 10y^2-19y-14=0 equation:


Simplifying
10y2 + -19y + -14 = 0

Reorder the terms:
-14 + -19y + 10y2 = 0

Solving
-14 + -19y + 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 + -1.9y + y2 = 0

Move the constant term to the right:

Add '1.4' to each side of the equation.
-1.4 + -1.9y + 1.4 + y2 = 0 + 1.4

Reorder the terms:
-1.4 + 1.4 + -1.9y + y2 = 0 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + -1.9y + y2 = 0 + 1.4
-1.9y + y2 = 0 + 1.4

Combine like terms: 0 + 1.4 = 1.4
-1.9y + y2 = 1.4

The y term is -1.9y.  Take half its coefficient (-0.95).
Square it (0.9025) and add it to both sides.

Add '0.9025' to each side of the equation.
-1.9y + 0.9025 + y2 = 1.4 + 0.9025

Reorder the terms:
0.9025 + -1.9y + y2 = 1.4 + 0.9025

Combine like terms: 1.4 + 0.9025 = 2.3025
0.9025 + -1.9y + y2 = 2.3025

Factor a perfect square on the left side:
(y + -0.95)(y + -0.95) = 2.3025

Calculate the square root of the right side: 1.517399091

Break this problem into two subproblems by setting 
(y + -0.95) equal to 1.517399091 and -1.517399091.

Subproblem 1

y + -0.95 = 1.517399091 Simplifying y + -0.95 = 1.517399091 Reorder the terms: -0.95 + y = 1.517399091 Solving -0.95 + y = 1.517399091 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.95' to each side of the equation. -0.95 + 0.95 + y = 1.517399091 + 0.95 Combine like terms: -0.95 + 0.95 = 0.00 0.00 + y = 1.517399091 + 0.95 y = 1.517399091 + 0.95 Combine like terms: 1.517399091 + 0.95 = 2.467399091 y = 2.467399091 Simplifying y = 2.467399091

Subproblem 2

y + -0.95 = -1.517399091 Simplifying y + -0.95 = -1.517399091 Reorder the terms: -0.95 + y = -1.517399091 Solving -0.95 + y = -1.517399091 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.95' to each side of the equation. -0.95 + 0.95 + y = -1.517399091 + 0.95 Combine like terms: -0.95 + 0.95 = 0.00 0.00 + y = -1.517399091 + 0.95 y = -1.517399091 + 0.95 Combine like terms: -1.517399091 + 0.95 = -0.567399091 y = -0.567399091 Simplifying y = -0.567399091

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.467399091, -0.567399091}

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