[(A-1 / 2) squared + (a + 1 / 2) squared] (2a squared-1 / 2)

The original formula = (A & # 178; - A + 1 / 4 + A & # 178; + A + 1 / 4) (2a & # 178; - 1 / 2)
=(2a²+1/2)(2a²-1/2)
=(2a²)²-(1/2)²
=4a^4 -1/4

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