Question

if x + y = 12 and xy = 27 then find the value of x3 + y3.

Answer 1

(x+y)³=x³+y³+3xy(x+y)
  12³  =x³+y³+3×27×12
1728  =x³+y³+972
x³+y³  =1728-972
          =756
 

Answer 2

Answer:

756

Step-by-step explanation: