2007
Mathematics
JAMB
Find the value of x for which 2(32x-1) = 162
A.
5/2
B.
3/2
C.
2/5
D.
1/2
Correct Answer: 5/2
Explanation
2(32x-1) = 162 32x-1 = 162/2 32x-1 = 81 32x-1 = 32 2x - 1 = 4 (equating the indices) 2x = 5 x = 5/2
2(32x-1) = 162 32x-1 = 162/2 32x-1 = 81 32x-1 = 32 2x - 1 = 4 (equating the indices) 2x = 5 x = 5/2THIS WEEK's
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