y=5y^2-4

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Solution for y=5y^2-4 equation:


Simplifying
y = 5y2 + -4

Reorder the terms:
y = -4 + 5y2

Solving
y = -4 + 5y2

Solving for variable 'y'.

Reorder the terms:
4 + y + -5y2 = -4 + 5y2 + 4 + -5y2

Reorder the terms:
4 + y + -5y2 = -4 + 4 + 5y2 + -5y2

Combine like terms: -4 + 4 = 0
4 + y + -5y2 = 0 + 5y2 + -5y2
4 + y + -5y2 = 5y2 + -5y2

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

Factor a trinomial.
(1 + -1y)(4 + 5y) = 0

Subproblem 1

Set the factor '(1 + -1y)' equal to zero and attempt to solve: Simplifying 1 + -1y = 0 Solving 1 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1y = 0 + -1 -1y = 0 + -1 Combine like terms: 0 + -1 = -1 -1y = -1 Divide each side by '-1'. y = 1 Simplifying y = 1

Subproblem 2

Set the factor '(4 + 5y)' equal to zero and attempt to solve: Simplifying 4 + 5y = 0 Solving 4 + 5y = 0 Move all terms containing y to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 5y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 5y = 0 + -4 5y = 0 + -4 Combine like terms: 0 + -4 = -4 5y = -4 Divide each side by '5'. y = -0.8 Simplifying y = -0.8

Solution

y = {1, -0.8}

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