Question

If x = 2 + 22/3+ 21/3, then find the value of x3 - 6x2 + 6x.

Answer 1

x=2+2 2/3+2 1/3
x=2+8/3+7/3
x=2+15/3
x=2+5=7
now, x3-6x2+6x
=7^3-6×7^2+6×7
=343-294+42
=91

Answer 2

x=2+2 2/3+2 1/3

x=2+8/3+7/3

x=2+15/3

x=2+5=7

now, x3-6x2+6x

=7^3-6×7^2+6×7

=343-294+42

=91