Given:
The function is:

To find:
The all the real and non-real roots of the given function.
Solution:
We have,

For roots,
,


Taking square root on both sides, we get


![[\because \sqrt{-1}=i]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csqrt%7B-1%7D%3Di%5D)
The roots of the given function are -7i and 7i.
Therefore, the correct option is B.
Answer:
Step-by-step explanation:
(-1) × 1 = -1
More is correct hoped this helped!
Answer:
The answers are B and E
Step-by-step explanation:
The square root of 4 is 2.
The cube root of 8 is 2.
A is wrong because its value is 4.
C is wrong because its value is 4.
D is wrong because the square root of 8 isn't whole.