Question

help?

Answer 1

http://prntscr.com/8icohg

Answer 2

Post the question where you put "help?"

Answer 3

and ideas?

Answer 4

my answer is b. but im confused.

Answer 5

Yeah, B is the answer. What confuses you?

Answer 6

almost, you do want to square root both sides, but when we induce the square, we get a positive and negative answer.

Answer 7

the answer is not B

Answer 8

oh right

Answer 9

If 16 is X squared, then X is the square root of 16. Ok, now I'm confused.

Answer 10

so it would be c yea?

Answer 11

I swear it's B!

Answer 12

i.e. \[(-4)^2=(-4)(-4)=16=4*4=4^2=\]

Answer 13

Confusion is occuring.

Answer 14

I don't know what I'm doing it appears. I'm just gonig to go because this seems to be much more complicated than I thought :I

Answer 15

the answer to \(x=\sqrt{16}\) is \(x=4\)

The answer to \(x^2=16\) is \(x=\pm 4\)

Answer 16

@FitzIncorporated it is a common mistake. when we write \(\sqrt{something}\) we mean the positive square root(just like if we write 1). But when we induce a square (when we take square root of both sides) we get two answers.

In other words, the square root of 4 is 2

but there are two answers if I ask you what number squared is 4, they are 2 and -2

Answer 17

so its c? its lagging a bit

Answer 18

C

Answer 19

okTy :)

Answer 20

@zzr0ck3r Thank you :)

Answer 21

for sure :)