Given that p 2 q -5 and r - 4 evaluate 3p2 - q2... - WAEC Mathematics 2004 Question
Given that p = 2, q = -5 and r = - 4, evaluate 3p2 - q2 - r3
A
101
B
77
C
51
D
-27
correct option: c
3(2)2 - (-5)2 - (-4)3
3(4) – (25) – (-64); 12 – 25 + 64 = 51
3(4) – (25) – (-64); 12 – 25 + 64 = 51
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