Factorization of polynomials - Jamb Mathematics Past Questions and Answers

Question 76:

• JAMB 2014

Factorize 2y² - 15xy + 18x²

A. (2y - 3x) (y + 6x)
B. (2y - 3x) (y - 6x)
C. (2y + 3x) (y - 6x)
D. (3y + 2x) (y - 6x)

Question 77:

• JAMB 2015

Factorize x² + 9x + 20

A. (x − 5) ²
B. (x + 5)(x + 4)
C. (x — 5)(x + 3)
D. (x + 3) ²

Question 78:

• JAMB 2015

Factorize \( x^2 − 2x − 15 \)

A. (x + 3)²
B. (x + 5)(x − 3)
C. (x − 5)²
D. (x − 5)(x + 3)

Question 79:

• JAMB 2015

Simplify \( [1 ÷ (x^2 + 3x + 2)] + [1 ÷ (x^2 + 5x + 6)] \)

A. \( \frac{2}{(x + 1)^2} \)
B. \( \frac{2}{(x + 1)(x + 2} \)
C. \( \frac{2}{(x + 1)(x + 2} \)
D. \( \frac{2}{(x + 1)(x + 3} \)

Question 80:

• JAMB 2015

Solve x² − 2x − 3 = 0

A. X = 2 or 1
B. X = 3 or -1
C. X = 1 or 0
D. X = 1 or 2