What is f(1)=2x^4-8x^2
The alternate form of f(1)=2x^4-8x^2 is f(1) = 2x^2 ( x^2 - 4), f(1) = 2( x - 2) x^2 ( x + 2 ), 1/8 ( 8 f(1) + 64) - 2 ( x^2 - 2 )^2 = 0.
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