C-03-Q100mediumsingle_mcqx2+2x+1x+1=?\frac{x^2 + 2x + 1}{x + 1} = ?x+1x2+2x+1=? (x≠−1x \neq -1x=−1)ax+1x + 1x+1bx−1x - 1x−1cx2+1x^2 + 1