(x^2-9)(x^2-36)=0

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Solution for (x^2-9)(x^2-36)=0 equation:


Simplifying
(x2 + -9)(x2 + -36) = 0

Reorder the terms:
(-9 + x2)(x2 + -36) = 0

Reorder the terms:
(-9 + x2)(-36 + x2) = 0

Multiply (-9 + x2) * (-36 + x2)
(-9(-36 + x2) + x2(-36 + x2)) = 0
((-36 * -9 + x2 * -9) + x2(-36 + x2)) = 0
((324 + -9x2) + x2(-36 + x2)) = 0
(324 + -9x2 + (-36 * x2 + x2 * x2)) = 0
(324 + -9x2 + (-36x2 + x4)) = 0

Combine like terms: -9x2 + -36x2 = -45x2
(324 + -45x2 + x4) = 0

Solving
324 + -45x2 + x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(9 + -1x2)(36 + -1x2) = 0

Factor a difference between two squares.
((3 + x)(3 + -1x))(36 + -1x2) = 0

Factor a difference between two squares.
((6 + x)(6 + -1x))(3 + x)(3 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Subproblem 3

Set the factor '(6 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6

Subproblem 4

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-3, 3, -6, 6}

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