Given that p = 2, q = -5 and r = – 4, evaluate 3p2…

Mathematics WAEC 2004

Given that p = 2, q = -5 and r = – 4, evaluate 3p2 – q2 – r3

  • 101
  • 77
  • 51 checkmark
  • -27

The correct answer is: C

Explanation

3(2)2 - (-5)2 - (-4)3
3(4) – (25) – (-64); 12 – 25 + 64 = 51
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