Question

if (a+b+c=0) then a power3 + b power3 + c power3=??​

Answer 1

Answer:

Step-by-step explanation:

a+b+c=0

a+b=-c

(a+b)³=(-c)³

a³+b³+3ab(a+b)=-c³

a³+b³+c³+3ab(-c)=0

a³+b³+c³=3abc