Four of the following five parts numbered (a), (b), (c), (d) and (e) are exactly equal. The number of the part which is not equal to the other four parts is your answer.\nOptions:\n(A) 2x2 – 3xy + y2\n(B) (2x + y) (x – y) \n(C) (x – y) 2 + x(x – y) \n(D) (2x – y) 2 – x(2x – y) \n(E) (2x – y) 2 – 2x2 + xy Stream of consciousness:
User
Other parts are equal to\n2x2 + y2 – 3xy.
Thus, the answer is (B).
Assistant