Question

What is the ans for 3rd question

Answer 1

Answer:

first we had to find the value of p nd q by rationalization..

p=5-2 root 6

q=5+2 root 6

then..

p ^2+q^2

(5-2 root 6)^2 + (5+2 root 6)^2

By identities

• (a+b)^2=a^2+b^2+2ab
• a-b)^2=a^2+b^2-2ab

answer=98