Question on: WAEC Mathematics - 2009

If (2x + 3)3 = 125, find the value of x

A
1
B
2
C
3
D
4
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Correct Option: A

(2x + 3 )2 = 125

2n + 3 = 3(\sqrt{125})

2x + 3 = 5

2x = 5 - 3

x = (\frac{2}{2})

= 1

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