Question

write next two terms of an A.P.43,35,27,19.........

Answer 1

here the constant number is -8
therefore, next two terms will be:
19+(-8)= 11
11+(-8)= 3

Answer 2

Given AP : 43,35,27,19.....
First term       a = 43
Common difference    d = 35-43=  -8
We need the fifth and 6th terms
5th term = a+4d
              = 43+(4) (-8)  
              = 43+(-32)
              = 43-32
              = 11
6th term = 43+5d
              = 43+5(-8)
              = 43-40
              = 3
∴the next two terms are 11 and 3
         
                   OR Simply
Common difference = 35-43 = -8
next term = 19+(-8)  
                = 19-8
                = 11
next term = 11+(-8)
                = 11-8
                = 3
∴The next two terms are 11 and 3
The second type is easy consider this