Home ยป Past Questions ยป Mathematics ยป Jamb ยป 1988 ยป Page 3
43

Factorize completely \((x^2 + x)^2 – (2x + 2)^2\)

  • A. (x + 1)(x + 2)(x - 2)
  • B. (x + 1) 2(x + 2) (x - 2)
  • C. (x + 1)2 (x + 2)2
  • D. (x + 1)2 (x + 2)(x - 2)
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44

If (g(y)) = \(\frac{y – 3}{11}\) + \(\frac{11}{y^2 – 9}\). what is g(y + 3)?

  • A. \(\frac{y}{11} + \frac{11}{y(y + 6)}\)
  • B. \(\frac{y}{11} + \frac{11}{y(y + 3)}\)
  • C. \(\frac{y + 30}{11} + \frac{11}{y(y + 3)}\)
  • D. \(\frac{y + 3}{11} + \frac{11}{y(y - 6)}\)
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45

if a = -3, b = 2, c = 4, evaluate \(\frac{a^3 – b^3 – c^{\frac{1}{2}}}{b – a – c}\)

  • A. 37
  • B. \(\frac{-37}{5}\)
  • C. \(\frac{37}{5}\)
  • D. -37
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46

If x varies inversely as the cube root of y and x = 1 when y = 8, find y when x = 3

  • A. \(\frac{1}{3}\)
  • B. \(\frac{2}{3}\)
  • C. \(\frac{8}{27}\)
  • D. \(\frac{4}{9}\)
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47

If \(\frac{1}{p}\) = \(\frac{a^2 + 2ab + b^2}{a – b}\) and \(\frac{1}{q}\) = \(\frac{a + b}{a^2 – 2ab + b^2}\) Find \(\frac{p}{q}\)

  • A. \(\frac{a + b}{a - b}\)
  • B. \(\frac{1}{a^2 - b^2}\)
  • C. \(\frac{a - b}{a + b}\)
  • D. a2 - b2
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48

If \(1P03{_4} = 115_{10}\) find P

  • A. o
  • B. 1
  • C. 2
  • D. 3
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49

Tope bought X oranges at N5.00 each and some mangoes at N4.00 each. if she bought twice as many mangoes as oranges and spent at least N65.00 and at most N130.00, find the range of values of X.

  • A. 4โ‰คXโ‰ค5
  • B. 5โ‰คXโ‰ค8
  • C. 5โ‰คXโ‰ค10
  • D. 8โ‰คXโ‰ค10
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