SAT Level 4 Passport to Advanced Math Problem Here is a hard Passport to Advanced Math SAT problem. Come back tomorrow for a solution. Level 4 Passport to Advanced Math Let m = 2x + 7 and k = 2x – 7, and write km = cx2 + d, where c and d are constants. What is the value of c – d ? Share this problem with your Facebook friends that are preparing for the SAT If you’re preparing for the SAT, you may want to check out the Get 800 collection of SAT math books. Comments comments