Question

A is equals to root 5 + root 2 by root 5 minus root 2 and b is equals to root 5 minus root 2 by root 5 + root 2 show that 3 a square + 4 a b minus 3 b square is equals to 4 + 56 root 10by 3​

Answer 1

i think 52 should be in place of 4

Answer 2

Answer

Hope it is helpful for you