If 2x 3 3 125 find the value of x - WAEC Mathematics 2009 Question
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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