C-02-Q056mediumsingle_mcqউৎপাদকে বিশ্লেষণ করো: x3+x2−x−1x^3 + x^2 - x - 1x3+x2−x−1a(x−1)2(x+1)(x - 1)^2 (x + 1)(x−1)2(x+1)b(x+1)2(x−1)(x + 1)^2 (x - 1)