Question

if x+y+2=0 show that X^3+y^3-2^3=3xyz​

Answer 1

Answer:

formula explained....

$a + b + c = 0.........then \:$

${a}^{3} + {b}^{3} + {c}^{3} = 3abc$

in above example.....

x+y+2=O let x = a; y = b; c = 2

Hence proved