3x^4-9x^2-30x^2=0

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Solution for 3x^4-9x^2-30x^2=0 equation:


Simplifying
3x4 + -9x2 + -30x2 = 0

Reorder the terms:
-9x2 + -30x2 + 3x4 = 0

Combine like terms: -9x2 + -30x2 = -39x2
-39x2 + 3x4 = 0

Solving
-39x2 + 3x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x2'.
3x2(-13 + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

Set the factor '(-13 + x2)' equal to zero and attempt to solve: Simplifying -13 + x2 = 0 Solving -13 + x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + x2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + x2 = 0 + 13 x2 = 0 + 13 Combine like terms: 0 + 13 = 13 x2 = 13 Simplifying x2 = 13 Take the square root of each side: x = {-3.605551275, 3.605551275}

Solution

x = {0, -3.605551275, 3.605551275}

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