Simplify completely the quantity x squared plus x minus 12 over quantity x squared minus x minus 20 divided by the quantity 3 x squared minus 24 x . (2 points) quantity x minus 5 over 4 open parentheses x plus 1 close parentheses quantity x plus 1 over 8 open parentheses x minus 5 close parentheses 4 open parentheses x plus 1 close parentheses over quantity x minus 5 8 open parentheses x minus 5 close parentheses over quantity x plus 1