WAEC - Mathematics (2007 - No. 28)
If x = 3, Y = 2 and z = 4, what is the value of 3x2 - 2y + z?
17
27
35
71
Explanation
x = 3, y = 2, z = 4
3x2 - 2y + z
= 3(3)2 - 2(2) + 4
3(9) - 4 + 4 = 27
3x2 - 2y + z
= 3(3)2 - 2(2) + 4
3(9) - 4 + 4 = 27
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