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Popular >

3^{x+2}+3^x=810

Solution

3^{x + 2} + 3^{x} = 810

Solution

x = 4

Solution steps

3^{x + 2} + 3^{x} = 810

Factor

3^{x + 2} + 3^{x} : 10 \cdot 3^{x}

10 \cdot 3^{x} = 810

Divide both sides by

10

3^{x} = 81

Apply exponent rules

x = 4

Popular Examples

4^{x-x^2}= 1/(64^x)

4^{x - x^{2}} = \frac{1}{6 4 ^{x}}

solvefor x,(e^{2x+1})/5 =yz solve for

x, \frac{e ^{2 x + 1}}{5} = yz

15 e^{5 x} = 5

62 \cdot 1 0^{x} = 40

7e^{3n-5}+5=-89

7 e^{3 n - 5} + 5 = - 89

Frequently Asked Questions (FAQ)

What is the answer to 3^{x+2}+3^x=810 ?
The answer to 3^{x+2}+3^x=810 is x=4
Solve for x: 3^{x+2}+3^x=810
The solution is x=4