Solve (4×9×11)^a: Finding the Power of a Product

Question

Solve the following exercise:

(4×9×11)a (4\times9\times11)^a

Video Solution

Solution Steps

00:00 Solve
00:02 When there is a power on a product of numbers, all terms are raised to that power
00:05 And this is the solution to the question

Step-by-Step Solution

We use the power law for a multiplication between parentheses:

(zt)n=zntn (z\cdot t)^n=z^n\cdot t^n

That is, a power applied to a multiplication between parentheses is applied to each term when the parentheses are opened,

We apply it in the problem:

(4911)a=4a9a11a (4\cdot9\cdot11)^a=4^a\cdot9^a\cdot11^a

Therefore, the correct answer is option b.

Note:

From the power property formula mentioned, we can understand that it works not only with two terms of the multiplication between parentheses, but also valid with a multiplication between multiple terms in parentheses. As we can see in this problem.

Answer

4a×9a×11a 4^a\times9^a\times11^a