Question

examine whether the following are rational or irrational:-​

Answer 1

Answer:

Step-by-step explanation: in the first one you need to expand it using the identity (a+b)↑2. then u get an answer from the expansion, check whether the answer u got has roots or not, if it has roots then its irrational if it does not have roots then its defined as rational.

the next one is also same but here it is a different identity

in this question you need to use (a+b) (a-b) identity to expand and u get an answer! if it has roots then its defined as  irrational, if it does not have roots then its defined as rational.