Question

I need help for #4 (an explanation would be great)

Answer 1

The answer is 8 & 10 , the 8 is going to be the outter number and the 10 is going to be the inner number

Answer 2

15 square root of 6i

Step-by-step explanation:

square root of -54 can be re written as square root of -1 and square root of +54, the square root of -1 is basically i, and then the square root of 54 can be written as 9*6 and square root of 9 is 3

3 * 5 (which was outside the square root (see image) = 15 and square root of 6 is left along with the i