Question

if X+y+2=0 prove the
X3+y3+23=3xy3​

Answer 1

Step-by-step explanation:

Answer

Open in answr app

Given x+y+z=0

⟹x+y=−z

Cubing on both sides

(x+y)3=(−z)3

⟹x3+y3+3x2y+3xy2=−z3

⟹x3+y3+3xy(x+y)=−z3

⟹x3+y3+3xy(−z)=−z3

⟹x3+y3−3xyz=−z3

⟹x3+y3+z3=3xyz

Answer 2

Step-by-step explanation:

x+y-2

fir a+b ka whole sq formula lgao ,

fir a+b ka whole cube ka , u will get ur ans