What is the answer to ln(x^2-99)=0 ?

The answer to ln(x^2-99)=0 is x=10,x=-10

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

ln(x^2-99)=0

ln (x^{2} - 99) = 0

x = 10, x = - 10

Solution steps

ln (x^{2} - 99) = 0

Apply log rules

x^{2} - 99 = 1

Solve

x^{2} - 99 = 1 : x = 10, x = - 10

x = 10, x = - 10

2 lo g_{2} (x) = lo g_{2}^{2} (x)

2 ln (x) = ln (18) + ln (x - 4)

y, ln (2 y) = x

2 lo g_{2} (x - 4) + lo g_{2} (2) = 3

lo g_{10} (x^{2}) = - 2