Question

$x + 1 \div x |2 = 3$
then find
x3+1/x3​

Answer 1

Answer:

(x+1)/(x/2)=3,

=>(X+1)=3x/2,

=>2x+2=3x,

=>x=2.

then,

x^3+1/x^3=2^3+1/2^3,

=8+1/8,

=65/8,

=8.125.