Simplify (9×5)¹² ÷ (5×9)⁶: Power Division Challenge

Question

Insert the corresponding expression:

(9×5)12(5×9)6= \frac{\left(9\times5\right)^{12}}{\left(5\times9\right)^6}=

Video Solution

Solution Steps

00:12 Let's simplify the exercise.
00:15 In multiplication, the order of numbers doesn't matter.
00:19 We'll use this concept and switch the order of numbers in our exercise.
00:27 Now, let's look at dividing powers.
00:30 If you have a number, A, to the power of N, divided by A to the power of M,
00:36 it equals A to the power of M minus N.
00:41 We'll apply this formula in our exercise.
00:45 And that's how we solve this problem!

Step-by-Step Solution

We begin by analyzing the given expression: (9×5)12(5×9)6 \frac{\left(9\times5\right)^{12}}{\left(5\times9\right)^6} . Using the property of exponents known as the Power of a Quotient Rule, we can rewrite this expression.
This rule states that aman=amn \frac{a^m}{a^n} = a^{m-n} . Here, both the numerator and the denominator have the same base, 9×59\times5 or equivalently 5×95\times9, therefore we can apply this rule.

Let's apply the Power of a Quotient Rule:

  • Identify the base, which is 9×59\times5.

  • Subtract the exponent in the denominator from the exponent in the numerator: 12612 - 6.

Thus, the expression simplifies to (9×5)126\left(9\times5\right)^{12-6}.

The solution to the question is: (9×5)126\left(9\times5\right)^{12-6}.

Answer

(9×5)126 \left(9\times5\right)^{12-6}