80y^4-45y^2=

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Solution for 80y^4-45y^2= equation:


Simplifying
80y4 + -45y2 = 0

Reorder the terms:
-45y2 + 80y4 = 0

Solving
-45y2 + 80y4 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '5y2'.
5y2(-9 + 16y2) = 0

Factor a difference between two squares.
5y2((3 + 4y)(-3 + 4y)) = 0

Ignore the factor 5.

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 '(3 + 4y)' equal to zero and attempt to solve: Simplifying 3 + 4y = 0 Solving 3 + 4y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 4y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 4y = 0 + -3 4y = 0 + -3 Combine like terms: 0 + -3 = -3 4y = -3 Divide each side by '4'. y = -0.75 Simplifying y = -0.75

Subproblem 3

Set the factor '(-3 + 4y)' equal to zero and attempt to solve: Simplifying -3 + 4y = 0 Solving -3 + 4y = 0 Move all terms containing y to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 4y = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 4y = 0 + 3 4y = 0 + 3 Combine like terms: 0 + 3 = 3 4y = 3 Divide each side by '4'. y = 0.75 Simplifying y = 0.75

Solution

y = {0, -0.75, 0.75}

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