Simplify (12×4)⁴ ÷ (4×12)¹¹: Complex Exponential Fraction Problem

Question

Insert the corresponding expression:

(12×4)4(4×12)11= \frac{\left(12\times4\right)^4}{\left(4\times12\right)^{11}}=

Video Solution

Solution Steps

00:13 First up, remember this!
00:16 In multiplication, it doesn't matter which number comes first.
00:22 We'll apply this idea and switch the order of the numbers.
00:26 Next, let's focus on dividing powers.
00:29 If A to the power of N is divided by A to the power of M...
00:35 ...it equals A to the power of M minus N.
00:40 We'll use this formula in our example.
00:43 Let's calculate the power together!
00:46 And that's how we find the solution! Great job.

Step-by-Step Solution

To solve this problem, we will use the power of a quotient rule for exponents, which states: aman=amn\frac{a^m}{a^n} = a^{m-n}.

Here's a step-by-step solution:

  • Step 1: Identify the base and exponents in the problem.
  • Step 2: Apply the exponent rules.
  • Step 3: Simplify the expression by calculating the difference in exponents.

Now, let's apply these steps in detail:

Step 1: We have the expression (12×4)4(4×12)11 \frac{(12 \times 4)^4}{(4 \times 12)^{11}} . Here, the base is (12×4)(12 \times 4), and the exponents are 4 in the numerator and 11 in the denominator.

Step 2: Combine the terms using the commutative and associative properties of multiplication. Notice that the terms 12×412 \times 4 are identical in both the numerator and denominator. So, simplify using these instances: (12×4)4(12 \times 4)^4 in the numerator and (12×4)11(12 \times 4)^{11} in the denominator.

Step 3: Apply the power of a quotient rule:
(12×4)4(12×4)11=(12×4)411=(12×4)7 \frac{(12 \times 4)^4}{(12 \times 4)^{11}} = (12 \times 4)^{4-11} = (12 \times 4)^{-7}

This means the simplified expression is (12×4)7 (12 \times 4)^{-7} .

Therefore, the correct answer among the provided choices is (12×4)7 \left(12\times4\right)^{-7} , which corresponds to choice 1.

Answer

(12×4)7 \left(12\times4\right)^{-7}