Jamb Mathematics 1993 Past Questions and Answers

Question 11:

• JAMB 1993

If \(\sqrt{x^2 + 9}\) = x + 1, solve for x

A. 5
B. 4
C. 3
D. 2
E. 1

Question 12:

• JAMB 1993

Make x the subject of the relation \(\frac{1 + ax}{1 - ax}\) = \(\frac{p}{q}\)

A. \(\frac{p + q}{a(p - q)}\)
B. \(\frac{p - q}{a(p + q)}\)
C. \(\frac{p - q}{apq}\)
D. \(\frac{pq}{a(p - q)}\)

Question 13:

• JAMB 1993

Which of the following is a factor of 15 + 7x - 2x²

A. X + 3
B. X - 3
C. X - 5
D. X + 5

Question 14:

• JAMB 1993

Evaluate (x + \(\frac{1}{x}\) + 1)² - (x + \(\frac{1}{x}\) + 1)²

A. 4x²
B. (\(\frac{2}{x}\) + 2)²
C. 4
D. 4(1 + x)

Question 15:

• JAMB 1993

Solve the following simultaneous equation for x. x² + y - 5 = 0, y - 7x + 3 = 0

A. -2, 4
B. 2, 4
C. -1,8
D. 1, -8