Factor the expression over the complex numbers. x^2 +20 enter your answer in the box.

Step-by-step explanation:

Let solve this first:

Note: i = √-1

Using the property of radicals [√a√b=√(ab)], we can write √20 as:

√20 = √4√5 = 2√5

We can write:

x = ± 2√5 i

If we take the two roots (answers) as -a, and a, then we can write the factorization as:

(x - a ) (x + a)

Thus this factorization is:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!