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Popular >

3^{2x+1}= 1/81

Solution

3^{2 x + 1} = \frac{1}{81}

Solution

x = - \frac{5}{2}

+1

Decimal Notation

x = - 2.5

Solution steps

3^{2 x + 1} = \frac{1}{81}

Apply exponent rules

2 x + 1 = - 4

Solve

2 x + 1 = - 4 : x = - \frac{5}{2}

x = - \frac{5}{2}

Popular Examples

0.5 \cdot e^{4 z} = 13

3^{x-1}+3^x+3^{x-1}=26

3^{x - 1} + 3^{x} + 3^{x - 1} = 26

3^{5 x} = 81

10 0^{x} = 100

3(2^{(x)}+1)-2^{(x+2)}+5=0

3 (2^{(x)} + 1) - 2^{(x + 2)} + 5 = 0

Frequently Asked Questions (FAQ)

What is the answer to 3^{2x+1}= 1/81 ?
The answer to 3^{2x+1}= 1/81 is x=-5/2
Solve for x: 3^{2x+1}= 1/81
The solution is x=-5/2