y^2-10y-16=

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Solution for y^2-10y-16= equation:


Simplifying
y2 + -10y + -16 = 0

Reorder the terms:
-16 + -10y + y2 = 0

Solving
-16 + -10y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + -10y + 16 + y2 = 0 + 16

Reorder the terms:
-16 + 16 + -10y + y2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -10y + y2 = 0 + 16
-10y + y2 = 0 + 16

Combine like terms: 0 + 16 = 16
-10y + y2 = 16

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 = 16 + 25

Reorder the terms:
25 + -10y + y2 = 16 + 25

Combine like terms: 16 + 25 = 41
25 + -10y + y2 = 41

Factor a perfect square on the left side:
(y + -5)(y + -5) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(y + -5) equal to 6.403124237 and -6.403124237.

Subproblem 1

y + -5 = 6.403124237 Simplifying y + -5 = 6.403124237 Reorder the terms: -5 + y = 6.403124237 Solving -5 + y = 6.403124237 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 = 6.403124237 + 5 Combine like terms: -5 + 5 = 0 0 + y = 6.403124237 + 5 y = 6.403124237 + 5 Combine like terms: 6.403124237 + 5 = 11.403124237 y = 11.403124237 Simplifying y = 11.403124237

Subproblem 2

y + -5 = -6.403124237 Simplifying y + -5 = -6.403124237 Reorder the terms: -5 + y = -6.403124237 Solving -5 + y = -6.403124237 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 = -6.403124237 + 5 Combine like terms: -5 + 5 = 0 0 + y = -6.403124237 + 5 y = -6.403124237 + 5 Combine like terms: -6.403124237 + 5 = -1.403124237 y = -1.403124237 Simplifying y = -1.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. y = {11.403124237, -1.403124237}

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