Find the value of a, b and c and then find the roots of ax2 – bx + 10 = 0 and cy2 – dy +2 = 0
(i)- 20, 15, -5, 10, 5, 15, 20, a
(ii) 351, 219, 132, 87, 45, 42, 3, b
(iii) 240, 210, 180, 150, 120, 90, 60, c
(iv) 119, 102, 85, 68, 51, 34, d
1
x = 5, 2 and y = 2, 1
2
x = 2, 1 and y = 5,2
3
y = 5/7, 2/5 and x = 2/5, 1/6
4
x = 5/7, 2/5 and y = 2/5, 1/6
5
None of these.