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1. $4^{x + 1} = 32$

A. $\frac{1}{2}$
B. $\frac{1}{2}$
C. $\frac{1}{2}$
D. $\frac{1}{2}$

Answer: Option B

Explanation:

4x + 1 = 32 হলে x = ?

4x + 1 = 32

(22)x + 1 = 25

22x + 2 = 25

2x + 2 = 5

2x = 3

x = 3/2

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