The compound ratio of 2 :3, 4: 1 and 5 : 3 is _____
8 : 35
18 : 40
40 : 9
30 : 4
Find the H.C.F of the following expressions:
(1) x3 − 7x2 + 14x − 8 and x3 − 6x2 + 11x − 6
(2) 4a2 − 11a2 + 25a + 7 and 2a3 − 5a2 + 11a + 7
(3) x3 − 86x + 35 − 6x2 and x3 + 40 − 5x2 − 99x
(4) a3 − a2 − 7a + 3; a3 − 5a2 + 9a − 9 and a3 − 4a2 + 4a − 3.