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Which expression is equivalent to (3a)–2?

User Zerkz
by
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2 Answers

6 votes

Answer:

1/9a^2 which is A on edge

User Mkuff
by
7.3k points
6 votes

Answer:


(1)/(9a^(2))

Explanation:

We have been given an expression
(3a)^(-2)

We can see that our expression have an negative exponent.

We will use property of exponents for negative exponents to simplify our expression, which states that
x^(-b)=(1)/(x^(b)). Upon using this property we will get,


(3a)^(-2)=(1)/((3a)^(2))

Upon squaring 3a we will get,


(1)/(9a^(2))

Therefore,
(1)/(9a^(2)) will be equivalent expression of our given expression.

User Swegi
by
8.7k points

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