hey man.................dont be in tension , bcoz main hoon naa....

kidding...........

now look in these questioons...............................

put y= x²

u will get y² +y+1=0

     then  y=  w            

         

          y= w²

^{now as} y = x² 

x=    w,    -w   ,  w²,      -w²..................

now as we squre them (as in ur problm)............

we get

x=  w²  ,  w² ,   w^4,  w⁴

x=  w²,  w², w, w

2 similar roots.........therefore.............

equation is............[ (x-w) (x-w²)]²

            ⁼    [  x²  + x +1]²          (ans)

understood...........

thanku