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Popular >

9^{2x+1}-27^x=0

Solution

9^{2 x + 1} - 2 7^{x} = 0

Solution

x = - 2

Solution steps

9^{2 x + 1} - 2 7^{x} = 0

Add

2 7^{x}

to both sides

9^{2 x + 1} - 2 7^{x} + 2 7^{x} = 0 + 2 7^{x}

Simplify

9^{2 x + 1} = 2 7^{x}

Apply exponent rules

2 (2 x + 1) = 3 x

Solve

2 (2 x + 1) = 3 x : x = - 2

x = - 2

Popular Examples

e^{5 x - 2} = 30

19 6^{x} = 14

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

solvefor y,x=ye^{cy+1}solve for

y, x = y e^{cy + 1}

3^{2 x - 5} = \frac{1}{27}

Frequently Asked Questions (FAQ)

What is the answer to 9^{2x+1}-27^x=0 ?
The answer to 9^{2x+1}-27^x=0 is x=-2
Solve for x: 9^{2x+1}-27^x=0
The solution is x=-2