天山 9-5

saibei008

Q5: If (y+3)(y-1) – (y-2)(y-1) = r(y-1), what is the value of y? (1) r2 = 25 (2) r = 5 A. Statement (1) ALONE is sufficient, but statement (2) alone B. Statement (2) ALONE is sufficient, but statement (1) alone C. BOTH statements TOGETHER are sufficient, but NEITHER sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. answer is E

1）Y= 1 or 任意数

2）Y=任意数

thanks!!

my answer: A