Polynomials - Jamb Mathematics Past Questions and Answers

Question 206:

• JAMB 2001

Factorize 4x² - 9y² + 20x + 25

A. (2x -3y + 5)(2x - 3y - 5)
B. (2x - 3y)(2x + 3y)
C. (2x - 3y +5)(2x + 3y + 5)
D. (2x + 5)(2x - 9y +5)

Question 207:

• JAMB 2002

Solve for x in the equation x\(^3\) - 5x\(^2\) - x + 5 = 0

A. 1, - 1, or 5
B. 1, 1, or -5
C. -1, 1, or -5
D. 1, 1, or 5

Question 208:

• JAMB 2002

Make r subject of the formula given that \(\frac{x}{r+a}=\frac{a}{r}\)

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

Question 209:

• JAMB 2002

The inverse function f(x) = 3x + 4 is

A. (x-4)/3
B. (x-5)/5
C. (x+3)/4
D. (x+4)/3

Question 210:

• JAMB 2002

If -2 is the solution of the equation 2x + 1 - 3c = 2c + 3x - 7, find the value of c.

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