Problem: Let x1β and x2β be such that x1βξ =x2β and 3xi2ββhxiβ=b,i=1,2. Then x1β+x2β equals
Answer Choices:
A. β3hβ
B. 3hβ
C. 3bβ
D. 2b
E. β3bβ
Solution:
Since x1β and x2β are the two roots of the quadratic equation 3x2βhxβb=0, the sum of the roots is 3hβ.