What is the answer to log_{2}(a^2-5)=2 ?

The answer to log_{2}(a^2-5)=2 is a=3,a=-3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

log_{2}(a^2-5)=2

lo g_{2} (a^{2} - 5) = 2

a = 3, a = - 3

Solution steps

lo g_{2} (a^{2} - 5) = 2

Apply log rules

a^{2} - 5 = 4

Solve

a^{2} - 5 = 4 : a = 3, a = - 3

a = 3, a = - 3

lo g_{x} (20) + lo g_{x} (5) = 2

lo g_{3} (lo g_{2} (x + 9)) = 1

ln (x^{2}) = 2 ln (x)

lo g_{16} (x) = \frac{3}{4}

b, ln (12 b) = 2 ln (b + 3 a) - ln (a)

What is the answer to log_{2}(a^2-5)=2 ?
The answer to log_{2}(a^2-5)=2 is a=3,a=-3
Solve for a: log_{2}(a^2-5)=2
The solution is a=3,a=-3