Question

If a + b + c = 1, ab + bc + ca = -1 and abc = -1. find the value of a³+b³+c³​

Answer 1

1

Explanation:

→ If we know that 3 numbers need to multiply to make -1, it must be

1, 1 and -1

→ Then we just substitute this into a³ + b³ + c³

1³ + 1³ + (-1)³ = 2 - 1 = 1