Comprehension Passage
Directions: Solve the equations I and II and answer the following questions carefully.
I. x2 - (a + b) x – 238 = 0
II. y2 - (a – b) y – 140 = 0
Note:
i) The smaller of the roots in equation I is (-7)
ii) One of the roots in equation II is 14 more than the smaller root of equation I
Find the value of (a2 + b2 + 2b/5 +3a/7).
1
440
2
460
3
450
4
430
5
420