Polynomials - Jamb Mathematics Past Questions and Answers

Question 111:

• JAMB 1987

Factorize 6^{2x + 1} + 7(6^x) - 5

A. [3(6^x) - 5][2(6^x)m + 1]
B. [3(6^x) + 5][2(6^x) - 1]
C. [(6^x) - 5][3(6^x) + 1]
D. [2(6^x) + 5][3(6^x) - 1]

Question 112:

• JAMB 1987

Find the values of y which satisfy the simultaneous equations x + y = 5, x² - 2y² = 1

A. -12, -2
B. -12, 12
C. 12, -2
D. 2, -2

Question 113:

• JAMB 1987

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

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

Question 114:

• JAMB 1988

Factorize completely \((x^2 + x)^2 - (2x + 2)^2\)

A. (x + 1)(x + 2)(x - 2)
B. (x + 1) 2(x + 2) (x - 2)
C. (x + 1)² (x + 2)²
D. (x + 1)² (x + 2)(x - 2)

Question 115:

• JAMB 1988

Solve the following equation equation for \(x^2 + \frac{2x}{r^2} + \frac{1}{r^4}\) = 0

A. R²
B. \(\frac{1}{r^4}\)
C. -\(\frac{1}{r^2}\)
D. 1 - r