Pre-AlgebraChallenge SharePre-Algebra · Challenge problemFour different numbers aaa, bbb, ccc, ddd are chosen from −7, −5, −2, 1, 3, 6-7,\ -5,\ -2,\ 1,\ 3,\ 6−7, −5, −2, 1, 3, 6. What is the largest possible value of ab−cdab-cdab−cd?Check Show answer Walk through it step by step Practice more like this