What is the answer to ln(x+9)+ln(x-3)=2ln(x) ?

The answer to ln(x+9)+ln(x-3)=2ln(x) is x= 9/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

ln(x+9)+ln(x-3)=2ln(x)

ln (x + 9) + ln (x - 3) = 2 ln (x)

x = \frac{9}{2}

Solution steps

ln (x + 9) + ln (x - 3) = 2 ln (x)

Apply log rules

(x + 9) (x - 3) = x^{2}

Solve

(x + 9) (x - 3) = x^{2} : x = \frac{9}{2}

x = \frac{9}{2}

Verify Solutions:

x = \frac{9}{2}

True

The solution is

x = \frac{9}{2}

ln (e x) = 2

lo g_{\frac{1}{7}} (x) = - 2

lo g_{3} (x + 1) = 1

20 lo g_{10} (x) = - 3

ln (a) = 0

What is the answer to ln(x+9)+ln(x-3)=2ln(x) ?
The answer to ln(x+9)+ln(x-3)=2ln(x) is x= 9/2
Solve for x: ln(x+9)+ln(x-3)=2ln(x)
The solution is x= 9/2