The number of partial fractions of 2x4+x2+1 is

x4+2x2+1−x2=x2+2x+1x2−2x+1∴ two factors

The number of partial fractions of 2x4+x2+1 is

x4+2x2+1−x2=x2+2x+1x2−2x+1∴ two factors

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The number of partial fractions of $\frac{2}{x^{4} + x^{2} + 1}$ is

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$\begin{array}{l} x^{4} + 2 x^{2} + 1 - x^{2} = (x^{2} + \sqrt{2 x} + 1) (x^{2} - \sqrt{2} x + 1) \\ ∴ two factors \end{array}$

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The number of partial fractions of 2x4+x2+1 is

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The number of partial fractions of $\frac{2}{x^{4} + x^{2} + 1}$ is