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Popular >

3^{x+3}+3^x=28

Solution

3^{x + 3} + 3^{x} = 28

Solution

x = 0

Solution steps

3^{x + 3} + 3^{x} = 28

Factor

3^{x + 3} + 3^{x} : 28 \cdot 3^{x}

28 \cdot 3^{x} = 28

Divide both sides by

28

3^{x} = 1

Apply exponent rules

x ln (3) = ln (1)

Solve

x ln (3) = ln (1) : x = 0

x = 0

Popular Examples

e^{a} = 0

2^{x} = 5^{x + 5}

16(4^x)^3=2^{2x}

16 (4^{x})^{3} = 2^{2 x}

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

(5/7)^{-5}*(5/7)^{3x}=(1/3)^{-2}

(\frac{5}{7})^{- 5} \cdot (\frac{5}{7})^{3 x} = (\frac{1}{3})^{- 2}

Frequently Asked Questions (FAQ)

What is the answer to 3^{x+3}+3^x=28 ?
The answer to 3^{x+3}+3^x=28 is x=0
Solve for x: 3^{x+3}+3^x=28
The solution is x=0