\(\frac{x+2}{x^2+2x+4}+\frac{x-2}{x^2-2x+4}+\frac{16}{x^4-4x^2+16}\) -Ans: \(\frac{2\left(x+2\right)}{x^2+2x+4}\)
Simplify: \(\frac1{1+p+p^2}-\frac1{1+p+p^2}-\frac{2p}{1-p^2+p^4}\)
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