Polynomials - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 1979

The solution of the equation x² - 2x = 8 is

A. X = 0 or 2
B. X = -2 or 4
C. X = 2
D. X = -4
E. X = 2 or 4

Question 52:

• JAMB 1979

Multiply (3x + 5y + 4z) by (2x - 3y + z)

A. 6x² + xy - 15y² + 4z² + 11xz - 7yz
B. 6x² + 3xy - 15y² + 4z²
C. 6x² + 3xy - y² + 4z²
D. 6x² + 3xy - 15y + z²

Question 53:

• JAMB 1979

Simplify \(\frac{x^2 + y^2 + xy}{x + y}\) - \(\frac{x^2 + y^2}{x - y}\)

A. \(\frac{x^2 + y^2} {(x - y)^2}\)
B. \(\frac{2y^3} {y^2 - x^2}\)
C. \(\frac{3x^2 + y^2} {(2x - y)^2}\)
D. \(\frac{x^2 + y^2} {(x^2 - y)}\)

Question 54:

• JAMB 1979

Make x the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

A. C = \(\frac{2d - 5 - b}{ad}\)
B. C = \(\frac{2d - 5 - abd}{ad}\)
C. C = \(\frac{2d - 5 - ab}{ad}\)
D. C = \(\frac{5 - 2d - b}{ad}\)

Question 55:

• JAMB 1979

Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2

A. X = -8, y = 1
B. X = -2, y = 4
C. X = \(\frac{-34}{27}\), y = \(\frac{73}{27}\)
D. X = 7, y = -9