What are the 5 names for the answer to solving a quadratic?

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17