Polynomials - Jamb Mathematics Past Questions and Answers

Question 106:

• JAMB 1986

Solve the equation 3x2 + 6x - 2 = 0

A. X = -1 \(\pm\) \(\frac{\sqrt{3}}{3}\)
B. X = -1 \(\pm\) \(\frac{\sqrt{15}}{3}\)
C. X = -2 \(\pm\) 2
D. X = 3 \(\pm\) \(\frac{\sqrt{3}}{15}\)

Question 107:

• JAMB 1986

Factorize (4a + 3)² - (3a - 2)²

A. (a + 1)(a + 5)
B. (a - 5)(7a - 1)
C. (a + 5)(7a + 1)
D. A(7a + 1)

Question 108:

• JAMB 1986

make U the subject of the formula S = \(\sqrt{\frac{6}{u} - \frac{w}{2}}\)

A. U = \(\frac{12}{2s^2}\)
B. U = \(\frac{12}{2s+ w}\)
C. U = \(\frac{12}{2s^2 + w}\)
D. U = \(\frac{12}{2s^2}\) + w

Question 109:

• JAMB 1986

Find the values of x which satisfy the equation 16^x - 5 x 4^x + 4 = 0

A. 1 and 4
B. -2 and 2
C. 0 and 1
D. -1 and 0

Question 110:

• JAMB 1987

Make y the subject of the formula Z = x\(^2\) + \(\frac{1}{y^3}\)

A. Y = \(\frac{1}{(Z - x^2)^3}\)
B. Y = \(\frac{1}{(Z + x^2)^{\frac{1}{3}}}\)
C. Y = \(\frac{1}{(Z - x^2)^{\frac{1}{3}}}\)
D. Y = \(\frac{1}{\sqrt[3]{Z} - \sqrt[3]{x^2}}\)