y^2-10y=-14

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


Simplifying
y2 + -10y = -14

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

Solving
-10y + y2 = -14

Solving for variable 'y'.

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

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

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 = 11
25 + -10y + y2 = 11

Factor a perfect square on the left side:
(y + -5)(y + -5) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(y + -5) equal to 3.31662479 and -3.31662479.

Subproblem 1

y + -5 = 3.31662479 Simplifying y + -5 = 3.31662479 Reorder the terms: -5 + y = 3.31662479 Solving -5 + y = 3.31662479 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 = 3.31662479 + 5 Combine like terms: -5 + 5 = 0 0 + y = 3.31662479 + 5 y = 3.31662479 + 5 Combine like terms: 3.31662479 + 5 = 8.31662479 y = 8.31662479 Simplifying y = 8.31662479

Subproblem 2

y + -5 = -3.31662479 Simplifying y + -5 = -3.31662479 Reorder the terms: -5 + y = -3.31662479 Solving -5 + y = -3.31662479 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 = -3.31662479 + 5 Combine like terms: -5 + 5 = 0 0 + y = -3.31662479 + 5 y = -3.31662479 + 5 Combine like terms: -3.31662479 + 5 = 1.68337521 y = 1.68337521 Simplifying y = 1.68337521

Solution

The solution to the problem is based on the solutions from the subproblems. y = {8.31662479, 1.68337521}

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