Question

plss answer tomorrow is my pre board ​

Answer 1

x+1/x=9 》(x^2+1)/x=9

》x=9-1=8.

x-1/x=6 》(x^2-1)/x=6

》x=6+1=7

when x = 8

x^4-1/x^4 》8^4-1/8^4

》4096-1/4096 》(4096*4096-1)/4096

=4095.

when x = 7

x^4-1/x^4 》7^4-1/7^4

》2401-1/2401 》(2401*2401-1)/2401

=2400.

is it right??

if yes plz mark as brainliest.