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      Question

      I. 2b2 - 37b + 143 = 0 II. 2a2

      + 15a - 143 = 0
      A 1 Correct Answer Incorrect Answer
      B 2 Correct Answer Incorrect Answer
      C 3 Correct Answer Incorrect Answer
      D 4 Correct Answer Incorrect Answer
      E 5 Correct Answer Incorrect Answer

      Solution

      I. 2b2 - 37b + 143 = 0 2b 2 -11b - 26b + 143 = 0 b(2b-11) - 13(2b-11) = 0 (b-13) (2b-11) = 0 b = 13, 5.5 II. 2a2 + 15a - 143 = 0 2a2 + 26a - 11a - 143 = 0 2a(a+13) - 11(a+13) = 0 (2a-11) (a+13) = 0 a = -13, 5.5 Hence a ≤ b.

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