(12x^4-x^2)-(8x^4+3x^2)=

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Solution for (12x^4-x^2)-(8x^4+3x^2)= equation:


Simplifying
(12x4 + -1x2) + -1(8x4 + 3x2) = 0

Reorder the terms:
(-1x2 + 12x4) + -1(8x4 + 3x2) = 0

Remove parenthesis around (-1x2 + 12x4)
-1x2 + 12x4 + -1(8x4 + 3x2) = 0

Reorder the terms:
-1x2 + 12x4 + -1(3x2 + 8x4) = 0
-1x2 + 12x4 + (3x2 * -1 + 8x4 * -1) = 0
-1x2 + 12x4 + (-3x2 + -8x4) = 0

Reorder the terms:
-1x2 + -3x2 + 12x4 + -8x4 = 0

Combine like terms: -1x2 + -3x2 = -4x2
-4x2 + 12x4 + -8x4 = 0

Combine like terms: 12x4 + -8x4 = 4x4
-4x2 + 4x4 = 0

Solving
-4x2 + 4x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4x2'.
4x2(-1 + x2) = 0

Factor a difference between two squares.
4x2((1 + x)(-1 + x)) = 0

Ignore the factor 4.

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

Subproblem 3

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

Solution

x = {0, -1, 1}

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