ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 31:

• JAMB 2017

What is the product of 2x² - x + 1 and 3 - 2x

A. 4x³ − 8x² + 5x + 3
B. −4x³ + 8x² − 5x + 3
C. −4x³ − 8x² + 5x + 3
D. 4x³ + 8x² − 5x + 3

Question 32:

• JAMB 2017

If and are the roots of the equation 3x² + bx 2 = 0. Find the value of \(\frac{1}{\alpha}\) + \(\frac{1}{\beta}\)

A. \(\frac{-5}{3}\)
B. \(\frac{-2}{3}\)
C. \(\frac{1}{2}\)
D. \(\frac{5}{2}\)

Question 33:

• JAMB 2017

Factorize completely x2 + 12xy + y2 + 3x + 3y - 18

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

Question 34:

• JAMB 2017

Make S the subject of the relation
p = s + \(\frac{sm^2}{nr}\)

A. S = \(\frac{nrp}{nr + m^2}\)
B. S = nr + \(\frac{m^2}{mrp}\)
C. S = \(\frac{nrp}{mr}\) + m²
D. S = \(\frac{nrp}{nr}\) + m²

Question 35:

• JAMB 2017

y is inversely proportional to x and y and 6 when x = 7. Find the constant of the variation

A. 47
B. 42
C. 54
D. 46