Question

Choose the correct simplification of the expression (b5)4.

the 5 is to the 5th power or and same for the 4 out of these answer witch one is right ? b9
b625
b20
b

Answer 1

b20. Try substituting values to find answers like this. 

Answer 2

Option 3rd is correct.

`b^(20)`

Explanation:

Using the exponent rules:

`(a^n)^m = a^(nm)`

Given the expression:

`(b^5)^4`

Apply the exponent rules, we have;

`b^(5 \cdot 4) = b^(20)`

Therefore, the correct simplification of the given expression is,
`b^(20)`