-5y^2-1=y

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Solution for -5y^2-1=y equation:


Simplifying
-5y2 + -1 = y

Reorder the terms:
-1 + -5y2 = y

Solving
-1 + -5y2 = y

Solving for variable 'y'.

Reorder the terms:
-1 + -1y + -5y2 = y + -1y

Combine like terms: y + -1y = 0
-1 + -1y + -5y2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(1 + y + 5y2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(1 + y + 5y2)' equal to zero and attempt to solve: Simplifying 1 + y + 5y2 = 0 Solving 1 + y + 5y2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 0.2 + 0.2y + y2 = 0 Move the constant term to the right: Add '-0.2' to each side of the equation. 0.2 + 0.2y + -0.2 + y2 = 0 + -0.2 Reorder the terms: 0.2 + -0.2 + 0.2y + y2 = 0 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + 0.2y + y2 = 0 + -0.2 0.2y + y2 = 0 + -0.2 Combine like terms: 0 + -0.2 = -0.2 0.2y + y2 = -0.2 The y term is y. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.2y + 0.25 + y2 = -0.2 + 0.25 Reorder the terms: 0.25 + 0.2y + y2 = -0.2 + 0.25 Combine like terms: -0.2 + 0.25 = 0.05 0.25 + 0.2y + y2 = 0.05 Factor a perfect square on the left side: (y + 0.5)(y + 0.5) = 0.05 Calculate the square root of the right side: 0.223606798 Break this problem into two subproblems by setting (y + 0.5) equal to 0.223606798 and -0.223606798.

Subproblem 1

y + 0.5 = 0.223606798 Simplifying y + 0.5 = 0.223606798 Reorder the terms: 0.5 + y = 0.223606798 Solving 0.5 + y = 0.223606798 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + y = 0.223606798 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + y = 0.223606798 + -0.5 y = 0.223606798 + -0.5 Combine like terms: 0.223606798 + -0.5 = -0.276393202 y = -0.276393202 Simplifying y = -0.276393202

Subproblem 2

y + 0.5 = -0.223606798 Simplifying y + 0.5 = -0.223606798 Reorder the terms: 0.5 + y = -0.223606798 Solving 0.5 + y = -0.223606798 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + y = -0.223606798 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + y = -0.223606798 + -0.5 y = -0.223606798 + -0.5 Combine like terms: -0.223606798 + -0.5 = -0.723606798 y = -0.723606798 Simplifying y = -0.723606798

Solution

The solution to the problem is based on the solutions from the subproblems. y = {-0.276393202, -0.723606798}

Solution

y = {-0.276393202, -0.723606798}

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