Question

plz answer this question with explaination!!!!!!!!!!!!p.s if you dont know dont answer

Answer 1

x^2+1/x^2=51

(x-1/x)^2+2=51

(x-1/x)^2=49

(x-1/x)=7

x^3-1/x^3=(x-1/x)^3+3x×1/x(x-1/x)

=7^3+3×7

=343+21=364