Question

x=2+root3 find value of xcube + 1upon x cube

Answer 1

Hey there,

Given that,(2x+2)/x=3
=>2x+2=3x
=>x=2
Then,{(x³)+1}/{(x³)+3}
={(2³)+1}/{(2³)+3}
={8+1}/{8+3}
=9/11

Hope this helps!

Answer 2

X cube +1/x cube= (x+1/x)(x square+1/x square-2)=52.
Hope it helps