If x2 – 2x – 15 = (x + r)(x + s) for all values of x, what is one possible value of r – s?
A. –3
B. –2
C. 2
D. 8
Answer:D
If x2 – 2x – 15 = (x + r)(x + s) for all values of x, what is one possible value of r – s?
A. –3 B. –2 C. 2 D. 8
Explanation: D