Question

If X = root 5 + root 3, then find value of x^2 + 1/x^2 - 4​

Answer 1

Answer:(root)√ symbol

((√5)^2+(√3)^2))+1/((√5)^2+(√3)^2))-4

(root and square cancel)

(5+3)+1/(5+3)-4

Step-by-step explanation:

(8)+1/(8)-4

take LCM

64+1-32/8

Answer:33/8