Polynomials - Jamb Mathematics Past Questions and Answers

Question 266:

• JAMB 2021

If (x + 2) and (x - 1) are factors of the expression \(Lx + 2kx^{2} + 24\), find the values of L and k.

A. L = -12, k = -6
B. L = -2 , k = 1
C. L = -2 , k = -1
D. L = 0, k = 1

Question 267:

• JAMB 2021

factorize m\(^3\) - m\(^2\) + 2m - 2

A. (m² + 1)(m - 2)
B. (m - 1)(m + 1)(m + 2)
C. (m - 2)(m + 1)(m - 1)
D. (m² + 2)(m - 1)

Question 268:

• JAMB 2021

Factorize completely 81a\(^4\) - 16b\(^4\)

A. (3a + 2b)(2a - 3b)(9a² + 4b²)
B. (3a - 2b)(2a - 3b)(4a² - 9b²)
C. (3a - 2b)(3a + 2b)(9a² + 4b²)
D. (6a - 2b)(8a - 3b)(4a³ - 9b²)

Question 269:

• JAMB 2021

If g(x) = x\(^2\) + 3x find g(x + 1) - g(x)

A. (x + 2)
B. 2(x + 2)
C. (2x + 1)
D. (x² + 4)

Question 270:

• JAMB 2021

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

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