Simplify (7×13)^13 ÷ (13×7)^17: Power Operations with Equal Bases

Question

Insert the corresponding expression:

(7×13)13(13×7)17= \frac{\left(7\times13\right)^{13}}{\left(13\times7\right)^{17}}=

Video Solution

Solution Steps

00:00 Simply
00:03 In multiplication, the order of factors doesn't matter
00:06 We'll use this formula in our exercise and swap between the factors
00:12 According to the laws of exponents, division of exponents with equal bases (A)
00:15 equals the same base (A) raised to the difference of exponents (M-N)
00:20 We'll use this formula in our exercise
00:23 We'll keep the base and subtract between the exponents
00:29 This is one solution to the question
00:33 Let's swap the factors again for a second solution option
00:37 And this is the solution to the question

Step-by-Step Solution

The question requires us to simplify the given expression using the laws of exponents, specifically the Power of a Quotient Rule for Exponents. The given expression is:

(7×13)13(13×7)17 \frac{\left(7\times13\right)^{13}}{\left(13\times7\right)^{17}}

We can rewrite the expression inside both the numerator and the denominator to express them more clearly:

(7×13)13=(91)13 \left(7\times13\right)^{13} = (91)^{13} and (13×7)17=(91)17 \left(13\times7\right)^{17} = (91)^{17}

The expression now looks like this:

(91)13(91)17 \frac{(91)^{13}}{(91)^{17}}

According to the properties of exponents, specifically the rule for dividing same bases, we subtract the exponents:

(91)1317=(91)4 (91)^{13-17} = (91)^{-4}

The expression now simplified is:

1(91)4 \frac{1}{(91)^4}

Therefore, we see that the simplified answer does not directly correspond to the given answer of "a' + b' = c'." It seems there might be a discrepancy in the final simplification or understanding, as we derived:

The solution to the question is: 1(91)4 \frac{1}{(91)^4}

I couldn't get to the shown answer, "a'+b' are correct."

Answer

a'+b' are correct