If ~$(y+3)(y-1)–(y-2)(y-1)=r(y-1)$~, what is the value of ~$y$~?
(1) ~$r^{2}=25$~
(2) ~$r=5$~
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
只需要知道无唯一解就行了
登录 或 注册 后可以参加讨论