Question

If x = 5 - 2 root 6 then find the value of x² +1/x^2​

Answer 1

ans:98

Step-by-step explanation:

x=5-2√6

or, 1/x=5+2√6

x²+1/x²=25-2×5×2√6+(2√6)²+25+2×5×2√6+(2√6)²

=25+25+24+24

=98