plss answer tomorrow is my pre board
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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.
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