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f(x) is a polynomial of degree 6 which d...

f(x) is a polynomial of degree 6 which decreases in the interval `(0, oo)` and increases in the interval `(-oo, 0)`. If `f^(')(2) =0, f^(')(0) =0, f^(")(0) =0,f(0) =1` and f(1)-f(-1) = 8/5`, then -3(f(1)+f(-1)) equals

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