C-03-Q035mediumsingle_mcqx2−1=?x^2 - 1 = ?x2−1=?a(x+1)(x−1)(x+1)(x-1)(x+1)(x−1)b(x−1)2(x-1)^2(x−1)2c(x+1)2(x+1)^2(x+1)2dx(x−1)x(x-1)x(x−1)