Question

plz ans it is of 2 mark​

Answer 1

Answer:

Let,

a=55

b=-25

c=-30

a+b+c=55+(-25)+(-30)

=55-25-30

=55-55

=0

Then,

a³+b³+c³=3abc

55³+(-25)³+(-30)³=3×55×(-25)×(-30)

55³-25³-30³=123750

Answer 2

Answer:

if x+y+z=0 then x³+y³+z³=3xyz

x=55,y=-25, z=-30

x+y+z=55-25-30=0

therefore,

55³+(-25)³+(-30)³=3xyz

=3*55*(-25)+(-30)

=123750