8y^4-4y^2=0

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Solution for 8y^4-4y^2=0 equation:


Simplifying
8y4 + -4y2 = 0

Reorder the terms:
-4y2 + 8y4 = 0

Solving
-4y2 + 8y4 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '4y2'.
4y2(-1 + 2y2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor 'y2' equal to zero and attempt to solve: Simplifying y2 = 0 Solving y2 = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y2 = 0 Take the square root of each side: y = {0}

Subproblem 2

Set the factor '(-1 + 2y2)' equal to zero and attempt to solve: Simplifying -1 + 2y2 = 0 Solving -1 + 2y2 = 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 + 2y2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 2y2 = 0 + 1 2y2 = 0 + 1 Combine like terms: 0 + 1 = 1 2y2 = 1 Divide each side by '2'. y2 = 0.5 Simplifying y2 = 0.5 Take the square root of each side: y = {-0.707106781, 0.707106781}

Solution

y = {0, -0.707106781, 0.707106781}

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