Question

What is log(21/x2) written in expanded form?

Answer 1

Answer:

$log(21)-2log(x)$

Step-by-step explanation:

The given logarithmic expression is $log(\frac{21}{x^2} )$.

Observe that the expression in the argument is a quotient.

We apply the quotient property. This property is given as follows:

$log(\frac{A}{B})=log(A)-log(B)$.

When we apply this property, we obtain,

$log(\frac{21}{x^2})=log(21)-log(x^2)$.

Recall that $log_a(m^n)=n\:log_a(m)$.

We now apply this property to obtain,

$log(\frac{21}{x^2})=log(21)-2log(x)$.

Therefore the correct answer is A

Answer 2

2log10(2vx2) is the answer