12y^4-19y^2-18=0

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Solution for 12y^4-19y^2-18=0 equation:


Simplifying
12y4 + -19y2 + -18 = 0

Reorder the terms:
-18 + -19y2 + 12y4 = 0

Solving
-18 + -19y2 + 12y4 = 0

Solving for variable 'y'.

Factor a trinomial.
(-2 + -3y2)(9 + -4y2) = 0

Factor a difference between two squares.
(-2 + -3y2)((3 + 2y)(3 + -2y)) = 0

Subproblem 1

Set the factor '(-2 + -3y2)' equal to zero and attempt to solve: Simplifying -2 + -3y2 = 0 Solving -2 + -3y2 = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -3y2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -3y2 = 0 + 2 -3y2 = 0 + 2 Combine like terms: 0 + 2 = 2 -3y2 = 2 Divide each side by '-3'. y2 = -0.6666666667 Simplifying y2 = -0.6666666667 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(3 + 2y)' equal to zero and attempt to solve: Simplifying 3 + 2y = 0 Solving 3 + 2y = 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 + 2y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2y = 0 + -3 2y = 0 + -3 Combine like terms: 0 + -3 = -3 2y = -3 Divide each side by '2'. y = -1.5 Simplifying y = -1.5

Subproblem 3

Set the factor '(3 + -2y)' equal to zero and attempt to solve: Simplifying 3 + -2y = 0 Solving 3 + -2y = 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 + -2y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2y = 0 + -3 -2y = 0 + -3 Combine like terms: 0 + -3 = -3 -2y = -3 Divide each side by '-2'. y = 1.5 Simplifying y = 1.5

Solution

y = {-1.5, 1.5}

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