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Popular >

-81=-3^{2x+8}

Solution

- 81 = - 3^{2 x + 8}

Solution

x = - 2

Solution steps

- 81 = - 3^{2 x + 8}

Move

3^{2 x + 8}

to the left side

- 81 + 3^{2 x + 8} = 0

Move

81

to the right side

3^{2 x + 8} = 81

Apply exponent rules

2 x + 8 = 4

Solve

2 x + 8 = 4 : x = - 2

x = - 2

Popular Examples

4^{x} + 2^{x + 3} = 9

9^{y} = 81

x^{x^{55}}=12100

x^{x^{55}} = 12100

4 (3^{x}) = 20

2 5^{x} - 16 = 0

Frequently Asked Questions (FAQ)

What is the answer to -81=-3^{2x+8} ?
The answer to -81=-3^{2x+8} is x=-2
Solve for x: -81=-3^{2x+8}
The solution is x=-2