Polynomials - Jamb Mathematics Past Questions and Answers

Question 11:

• JAMB 2018

If \(\frac{x}{a + 1}\) + \(\frac{y}{b}\) = 1. Make y the subject of the relation.

A. \(\frac{b(a + 1 - x)}{a + 1}\)
B. \(\frac{a + 1}{b(a - x + 1)}\)
C. \(\frac{a(b - x + 1)}{b + 1}\)
D. \(\frac{b}{a(b - x + 1)}\)

Question 12:

• JAMB 2018

Make T the subject of the relation.

A. T = \(\frac{R + P3}{15Q}\)
B. T = \(\frac{R - 15P^3}{Q}\)
C. T =R - \(\frac{15P^3}{Q}\)
D. T = \(\frac{15R + Q}{P^3}\)

Question 13:

• 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 14:

• 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 15:

• 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)