[tex] a.\frac{ \times { }^{2} + 3 \times }{ \times {}^{2} - 4 \times - {}^{2} } [/tex]
b.
[tex] \frac{5 \times {}^{3 } - 17 \times {}^{2} - 12 \times }{ \times { }^{2} - 4 \times } [/tex]
i need answers thank you​