an=(-1)2(2n)

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Solution for an=(-1)2(2n) equation: 


Simplifying
an = (-1) * 2(2n)

Remove parenthesis around (2n)
an = -1 * 2 * 2n

Multiply -1 * 2
an = -2 * 2n

Multiply -2 * 2
an = -4n

Solving
an = -4n

Solving for variable 'a'.

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

Divide each side by 'n'.
a = -4

Simplifying
a = -4

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