Question

if a+b+c=,then the value of a^3+b^3+c^3 is​

Answer 1

Step-by-step explanation:

a + b = - c. Now we will substitute the value of c from equation (i) in the expression given in the question. = 3abc. So, we can say that the expression a3+b3+c3 is equal to 3abc provided a + b + c = 0.

Answer 2

Step-by-step explanation:

Since, a

3

+b

3

+c

3

−3abc=(a+b+c)(a

2

+b

2

+c

2

−bc−ca−ab)

Given, a+b+c=0

∴a

3

+b

3

+c

3

−3abc=0

∴a

3

+b

3

+c

3

=3abc