$$ \begin{align*} \textbf{Izračunaj ove izraze } \\ &\ a) \frac{ -2 x^{2}+ 1 x - 34 }{(x- -2 )^{2}}= 0 \\ &\ b) \frac{ 34 x^{2}+ 2 x - 17 }{(x- 3 )^{2}}= 0 = 0 \\ &\ c) \binom{21}{x}\sum_{x}^{x+12} ( X+2X - 2x \cdot 1 ) \\ &\ d) X^{3} - 1 X - 1 + 34 X^{2}-\frac{1}{ 17 } X^{2} = 0 \\ &\ \end{align*} $$