ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 186:

• JAMB 1985

If 3^2y + 6(3^y) = 27. Find y

A. 3
B. -1
C. 2
D. -3
E. 1

Question 187:

• JAMB 1985

Factorize abx² + 8y - 4bx - 2axy

A. (ax - 4)(bx - 2y)
B. (ax + b)(x - 8y)
C. (ax - 2y)(bx - 4)
D. (bx - 4)(ax - 2y)
E. (abx - 4)(x - 2y)

Question 188:

• JAMB 1985

If the quadratic function 3x² - 7x + R is a perfect square, find R

A. \(\frac{49}{24}\)
B. \(\frac{49}{12}\)
C. \(\frac{49}{13}\)
D. \(\frac{49}{3}\)
E. \(\frac{49}{36}\)

Question 189:

• JAMB 1985

Solve for (x, y) in the equation 2x + y = 4: x^2 + xy = -12

A. (6, -8): (-2, 8)
B. (3, -4): (-1, 4)
C. (8, -4): (-1, 4)
D. (-8, 6): (8, -2)
E. (-4, 3): (4, -1)

Question 190:

• JAMB 1985

Solve the following equation \(\frac{2}{2r - 1}\) - \(\frac{5}{3}\) = \(\frac{1}{r + 2}\)

A. (\(\frac{5}{2}\), 1)
B. (5, -4)
C. (2, 1)
D. (1, \(\frac{-5}{2}\))
E. (\(\frac{-5}{2}\), 1)