6. What is the sum of the roots of the equation $\dfrac{1}{x^2} + \dfrac{1}{(1-x)^2} = \dfrac{16}{9}$? (1) $1$ (2) $1.75$ (3) $2$ (4) $2.25$
\textbf{6.} What is the sum of the roots of the equation $\dfrac{1}{x^2} + \dfrac{1}{(1-x)^2} = \dfrac{16}{9}$?
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(1) $1$ \hfill (2) $1.75$ \hfill (3) $2$ \hfill (4) $2.25$
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