Given that (2x−1)(2x - 1)(2x−1) is a factor of P(x)=2x3+ax2+bx−1P(x) = 2x^3 + ax^2 + bx - 1P(x)=2x3+ax2+bx−1, find P(12)P(\frac{1}{2})P(21).
000
111
−1-1−1
222