Question

If a+b+c = 2 p then show that a³+b³+c³+3(2 p-a)(2p-b)(2p-c) = 8p³

Answer 1

Answer:

THIS IS A QUESTION OF ALMOST 20-25 POINTS NOT 5

Step-by-step explanation:

The answer turns out to be that a³+b³+c³+3(2 p-a)(2p-b)(2p-c) = 8p³ . This type of problem seems to pop up here frequently, and there is something quite general called the Newton-Girard formulae that can be applied to such problems.