Question

if x+y 12 and xy 27 find the value of x³ +1/x³​

Answer 1

Step-by-step explanation:

I think this is the answer.

Answer 2

Step-by-step explanation:

xy=27

y=27/x

x+27/x=12

x+27=12

x2+27/x=12

x2+27=12x

x2-12x+27=0

x2-9x-3x+27=0

x(x-9)+3(x-9)=0

x=-3 or x=9