y^2-10y-14=0

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


Simplifying
y2 + -10y + -14 = 0

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

Solving
-14 + -10y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + -10y + 14 + y2 = 0 + 14

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

Combine like terms: -14 + 14 = 0
0 + -10y + y2 = 0 + 14
-10y + y2 = 0 + 14

Combine like terms: 0 + 14 = 14
-10y + y2 = 14

The y term is -10y.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10y + 25 + y2 = 14 + 25

Reorder the terms:
25 + -10y + y2 = 14 + 25

Combine like terms: 14 + 25 = 39
25 + -10y + y2 = 39

Factor a perfect square on the left side:
(y + -5)(y + -5) = 39

Calculate the square root of the right side: 6.244997998

Break this problem into two subproblems by setting 
(y + -5) equal to 6.244997998 and -6.244997998.

Subproblem 1

y + -5 = 6.244997998 Simplifying y + -5 = 6.244997998 Reorder the terms: -5 + y = 6.244997998 Solving -5 + y = 6.244997998 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = 6.244997998 + 5 Combine like terms: -5 + 5 = 0 0 + y = 6.244997998 + 5 y = 6.244997998 + 5 Combine like terms: 6.244997998 + 5 = 11.244997998 y = 11.244997998 Simplifying y = 11.244997998

Subproblem 2

y + -5 = -6.244997998 Simplifying y + -5 = -6.244997998 Reorder the terms: -5 + y = -6.244997998 Solving -5 + y = -6.244997998 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = -6.244997998 + 5 Combine like terms: -5 + 5 = 0 0 + y = -6.244997998 + 5 y = -6.244997998 + 5 Combine like terms: -6.244997998 + 5 = -1.244997998 y = -1.244997998 Simplifying y = -1.244997998

Solution

The solution to the problem is based on the solutions from the subproblems. y = {11.244997998, -1.244997998}

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