1, 3/3, 420/420 why such a wierd qustion
-625
use long multiplication to evaluate .
Answer:
option 1 is true. -1/2=-0.5
a+2 a +1
= ------- / ------------------
a -5 (a - 3)(a - 5)
a+2 (a - 3)(a - 5)
= ------- * ------------------
a -5 a +1
(a+2)(a - 3)
= ----------------
a +1
a NOT equal 5 and -1