1991 - JAMB Mathematics Past Questions and Answers - page 3
21
If g(x) = x2 + 3x + 4, find g(x + 1) - g(x)
A
(x + 2)
B
2(x + 2)
C
(2x + 1)
D
(x2 + 4)
Ask EduPadi AI for a Detailed Answer
22
Factorize m3 - 2m2 - m + 2
A
(m2 + 1)(m - 2)
B
(m - 1)(m + 1)(m + 2)
C
(m - 2)(m + 1)(m - 1)
D
(m2 + 2)(m - 1)
Ask EduPadi AI for a Detailed Answer
23
Factorize 1 - (a - b)2
A
(1 - a - b)(1 - a + b)
B
(1 + a - b)(1 - a + b)
C
(1 - a + b)(1 - a + b)
D
(1 + a + b)(1 + a + b)
Ask EduPadi AI for a Detailed Answer
24
Which of the following is a factor of rs + tr - pt - ps?
A
(p - s)
B
(s - p)
C
r - p)
D
r + p)
Ask EduPadi AI for a Detailed Answer
25
Find the two values of y which satisfy the simultaneous equation 3x + y = 8, x2 + xy = 6
A
-1 and 5
B
-5 and 1
C
1 and 5
D
1 and 1
Ask EduPadi AI for a Detailed Answer
26
Find the range of values of x which satisfy the inequality (\frac{x}{2}) + (\frac{x}{3}) + (\frac{x}{4}) < 1
A
x < \(\frac{12}{13}\)
B
x < 13
C
x < 9
D
\(\frac{13}{12}\)
Ask EduPadi AI for a Detailed Answer
27
Find the positive number n, such that thrice its square is equal to twelve times the number
A
1
B
2
C
3
D
4
Ask EduPadi AI for a Detailed Answer
28
What is the nth term of the progression 27, 9, 3,......?
A
27\(\frac{1}{3}\) n - 1
B
3n + 2
C
27 + 18(n - 1)
D
27 + 6(n - 1)
Ask EduPadi AI for a Detailed Answer
29
Solve the equation (x - 2) (x - 3) = 12
A
2, 3
B
3, 6
C
-1, 6
D
1, -6
Ask EduPadi AI for a Detailed Answer
30
Simplify (\frac{\sqrt{1 + x} + \sqrt{x}}{\sqrt{1 + x} - \sqrt{x}})
A
-2x - 2\(\sqrt{x (1 + x)}\)
B
1 + 2x + 2\(\sqrt{x (1 + x)}\)
C
\(\sqrt{x (1 + x)}\)
D
1 + 2x - 2\(\sqrt{x (1 + x)}\)
Ask EduPadi AI for a Detailed Answer