Evaluate the Power Fraction: (2^4)/(7^4) Expression

Question

Insert the corresponding expression:

2474= \frac{2^4}{7^4}=

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 According to the laws of exponents, a fraction raised to the power (N)
00:07 equals the numerator and denominator, raised to the same power (N)
00:12 We will apply this formula to our exercise, only this time in the opposite direction
00:23 This is the solution

Step-by-Step Solution

To solve this problem, we will apply the exponent rule for powers of a fraction.

  • Step 1: Understand the given expression 2474\frac{2^4}{7^4}.
  • Step 2: Use the formula anbn=(ab)n\frac{a^n}{b^n} = \left(\frac{a}{b}\right)^n to rewrite the expression.
  • Step 3: Apply this rule to rewrite 2474=(27)4\frac{2^4}{7^4} = \left(\frac{2}{7}\right)^4.

This shows that instead of writing separate powers for the numerator and denominator, we can express it as a single fraction raised to that power.

Thus, the expression 2474\frac{2^4}{7^4} corresponds to (27)4\left(\frac{2}{7}\right)^4.

The correct choice from the given options is:

  • Choice 3: (27)4 \left(\frac{2}{7}\right)^4

Therefore, the solution to the problem is (27)4 \left(\frac{2}{7}\right)^4 .

Answer

(27)4 \left(\frac{2}{7}\right)^4