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Mathematics 1989 JAMB Past Questions

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16

Solve for a positive number x such that \(2^{(x^3 - x^2 - 2x)} = 1\)

  • A. 4
  • B. 3
  • C. 2
  • D. 1
View Answer & Discuss (3) JAMB 1989
17

Simplify \(\frac{324 - 4x^2}{2x + 18}\)

  • A. 2(x - 9)
  • B. 2(9 + x)
  • C. 81 - x2
  • D. -2(x - 9)
View Answer & Discuss JAMB 1989
18

Factorize completely \(y^3 -4xy + xy^3 - 4y\)

  • A. (y + xy)(y + 2)(y - 2)
  • B. (y - xy)(y - 2)
  • C. y(1 + x)(y + 2)(y -2)
  • D. y(1 - x)(y + 2)(y - 2)
View Answer & Discuss (4) JAMB 1989
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19
Factorize 4a2 - 12ab - C2 + 9b2
  • A. 4a(a - 3b) + (3b - c)2
  • B. (2a + 3b - c)(2a + 3b + c)
  • C. (2a - 3b + c)(2a - 3b - c)
  • D. 4a(a - 3b) + (3b + c)
View Answer & Discuss (2) JAMB 1989
20
What are K and L respectively if \(\frac{1}{2}\)(3y - 4x)2 = (8x2 + kxy + Ly2)
  • A. -12, \(\frac{9}{2}\)
  • B. -6, 9
  • C. 6, 9
  • D. 12, \(\frac{9}{2}\)
View Answer & Discuss (1) JAMB 1989
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