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anemone
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Given that $a$ and $b$ are the roots of the equation $x^2+2000x+1=0$ whereas $c$ and $d$ are the roots of the equation $x^2-2008x+1=0$.
Evaluate $(a+c)(b+c)(a-d)(b-d)$.
Evaluate $(a+c)(b+c)(a-d)(b-d)$.