Power of a Product
If the base is a product, we can distribute the exponent to the terms of the base.
For example, (4 ⋅ 5)3 is equal to
(4 ⋅ 5) ⋅ (4 ⋅ 5) ⋅ (4 ⋅ 5)
We can rearrange this expression to:
(4 ⋅ 4 ⋅ 4) ⋅ (5 ⋅ 5 ⋅ 5)
This is equal to:
43 ⋅ 53
Thus we can conclude that:
(4 ⋅ 5)3 = 43 ⋅ 53
In general:
(x ⋅ y)n = (xn) ⋅ (yn)
Here are some examples:
(2 ⋅ 3)4 = (24) ⋅ (34)
((x + 1) ⋅ 5)7 = ((x + 1)7) ⋅ (57)
Quiz (1 point)
Consider the following:
(11 ⋅ 12)2 = 112 ⋅ x2
What is x?
Comments
Please log in to add comments