C-03-Q015mediumsingle_mcq(x+1)2+(x−1)2=?(x+1)^2 + (x-1)^2 = ?(x+1)2+(x−1)2=?a2x2+22x^2 + 22x2+2b2x22x^22x2c2x2−22x^2 - 22x2−2dx2+1x^2 + 1x2+1