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Question 8 (Multiple Choice Worth 1 point)

Explain how the Quotient of Powers Property was used to simplify this expression.

[tex]\[ \frac{3^4}{9} = 3^2 \][/tex]

Sagot :

Certainly! Let's simplify the expression [tex]\(\frac{3^4}{9}\)[/tex] by using the Quotient of Powers Property step-by-step:

1. Identify the bases and their exponents:
- The base in the numerator is 3 with an exponent of 4, so we have [tex]\(3^4\)[/tex].
- The denominator is 9. Recognize that 9 can be expressed as [tex]\(3^2\)[/tex].

So, the expression becomes:
[tex]\[ \frac{3^4}{9} = \frac{3^4}{3^2} \][/tex]

2. Apply the Quotient of Powers Property:
The Quotient of Powers Property states that [tex]\(\frac{a^m}{a^n} = a^{m-n}\)[/tex], where [tex]\(a\)[/tex] is the base and [tex]\(m\)[/tex] and [tex]\(n\)[/tex] are the exponents.

Using this property, we substitute [tex]\(a = 3\)[/tex], [tex]\(m = 4\)[/tex], and [tex]\(n = 2\)[/tex] into the expression:
[tex]\[ \frac{3^4}{3^2} = 3^{4-2} \][/tex]

3. Subtract the exponents:
Perform the subtraction of the exponents:
[tex]\[ 4 - 2 = 2 \][/tex]

Therefore, the expression simplifies to:
[tex]\[ 3^{4-2} = 3^2 \][/tex]

4. Simplify the resulting exponentiation:
Evaluate [tex]\(3^2\)[/tex]:
[tex]\[ 3^2 = 9 \][/tex]

So, the expression [tex]\(\frac{3^4}{9}\)[/tex] simplifies to [tex]\(3^2\)[/tex], which equals 9.

To sum up, by expressing the denominator [tex]\(9\)[/tex] as [tex]\(3^2\)[/tex] and then applying the Quotient of Powers Property ([tex]\(\frac{3^4}{3^2}\)[/tex]), we subtracted the exponents, resulting in [tex]\(3^2\)[/tex], which simplifies to [tex]\(9\)[/tex].