Lacey and Haley are rewriting expressions in an equivalent, simpler form. a. b. Haley simplified x. x2 and got x5. Lacey simplified x3 + x2 and got the same result! However, their teacher told them that only one simplification is correct. Who simplified correctly and how do you know? Haley simplifies 35.45 and gets the result 1210, but Lacey is not sure. Is Haley correct? Be sure to justify your answer.