0=x^4-2x^2-a

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Solution for 0=x^4-2x^2-a equation:


Simplifying
0 = x4 + -2x2 + -1a

Reorder the terms:
0 = -1a + -2x2 + x4

Solving
0 = -1a + -2x2 + x4

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add 'a' to each side of the equation.
0 + a = -1a + -2x2 + a + x4
Remove the zero:
a = -1a + -2x2 + a + x4

Reorder the terms:
a = -1a + a + -2x2 + x4

Combine like terms: -1a + a = 0
a = 0 + -2x2 + x4
a = -2x2 + x4

Simplifying
a = -2x2 + x4

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