if you multiply the outside number by all the terms in the parenthesis you'll get; 2(x + y) = 2(x) + 2(y)= 2x + 2y giving you A as your answer in Q.#2. And for Q.#3 the its the same steps; 2(3x) = 2(3)(x) = 6xGiving you A as your answer cause; 5x is not equivalent and the others are equivalent to 6x by multiplying as I explained you. hope that helps :D