determine the replacement set or domain of each
[tex]5. \frac{3 \times + 6}{ \times }6. \frac{ \times {}^{2} + 2 \times - 1}{ \times + 6} 7. \frac{1}{ \times { }^{2} + 3 \times + 2} [/tex]
PASAGOT NAMAN PO SALAMAT!​