Question

If x=5 + 5^1/3 + 5^2/3 , then the value of x^3-15x^2 + 60x + 20 equals?

Answer 1

@phi @ajprincess @apoorvk

Answer 2

\[x=5+\sqrt[3]{5}+\sqrt[3]{5^2}\]

Answer 3

now put the value, due to power in f(x) 'x' becomes simple.