If a + b + c = 12 , a^2 + b^2 + c^2 = 90, find the value of a^3 + b^3 + c^3 - 3 abc?

[Dhanalakshmi]

If a + b + c = 12 , a²+ b² + c² = 90, find the value of a³ + b³ + c³ - 3 abc ?

[Dhanalakshmi]