en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4^{x+1}+4^x=20

Solution

4^{x + 1} + 4^{x} = 20

Solution

x = 1

Solution steps

4^{x + 1} + 4^{x} = 20

Factor

4^{x + 1} + 4^{x} : 5 \cdot 4^{x}

5 \cdot 4^{x} = 20

Divide both sides by

5

4^{x} = 4

Apply exponent rules

x = 1

Popular Examples

3^{3x+5}=9^{2x+1}

3^{3 x + 5} = 9^{2 x + 1}

3x^2e^{3x}+2xe^{3x}=0

3 x^{2} e^{3 x} + 2 x e^{3 x} = 0

2^{2x}-10(2^x)+16=0

2^{2 x} - 10 (2^{x}) + 16 = 0

e^{x} + e^{- x} = 4

30 = 1 0^{x}

Frequently Asked Questions (FAQ)

What is the answer to 4^{x+1}+4^x=20 ?
The answer to 4^{x+1}+4^x=20 is x=1
Solve for x: 4^{x+1}+4^x=20
The solution is x=1