21. If thee arithmetic means are inserted between 18 and 50, what
is the first arithmetic mean?
A 18 B. 26
C. 30
D. 34
22. Which expression gives the remainder when P(x) = 4x2 + 2x - 5
is divided by (x - 2)?
A.P(-5) B. P(-2) C. P (2)
D.PH
23. Which of the following is the factor of P(x) = x - 7x3 + 6x?
A.X+1 B.X-1
C. x + 4
D. X + 3
24. Which of the following gives the complete set of possible rational
roots of P(x) = x3 + 3x2 - 5x - 12?
A. #1, #2, #3, #4, 16, +12
B. +1, +, +2, +3, + - +4, +6, +12
, , ,
C. +1, +2
3
2
D. +1, , 5, , +2
25. Which term of the arithmetic sequence 2, 7, 12, 17, ... is 122?
A. 23rd B. 24th
C. 25th
D. 26th​