Mastering the Fraction: Simplify (3/7)^-9

Question

(37)9=? (\frac{3}{7})^{-9}=\text{?}

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 In order to eliminate a negative exponent
00:06 Flip the numerator and the denominator so that the exponent will become positive
00:11 We'll apply this formula to our exercise, flip both the numerator and the denominator
00:17 When there's a fraction with an exponent, we raise both the numerator and the denominator to the power
00:25 We'll apply this formula to our exercise
00:28 This is the solution

Step-by-Step Solution

To solve the problem, we will follow these steps:

  • Step 1: Apply the negative exponent rule to rewrite the expression.
  • Step 2: Use the power of a fraction rule to find the correct form.

Now, let's work through each step:
Step 1: The expression is (37)9(\frac{3}{7})^{-9}. Using the negative exponent rule, we can rewrite it as 1(37)9\frac{1}{(\frac{3}{7})^{9}}.

Step 2: By applying the power of a fraction rule, we find 1(37)9=13979\frac{1}{(\frac{3}{7})^{9}} = \frac{1}{\frac{3^9}{7^9}}.
This expression can further be simplified to 7939\frac{7^9}{3^9} by inverting the fraction in the denominator.

Therefore, the solution to the problem is 7939 \frac{7^9}{3^9} .

Answer

7939 \frac{7^9}{3^9}