Question

Which method is correct when finding the product of (x − 3)2? Justify your answer in complete sentences.


Method 1

Method 2

(x − 3)2

(x − 3)2

(x − 3)(x − 3)

x2 − 32

x2 − 6x + 9

x2 − 9

Answer 1

@celecity

Answer 2

Sorry, I was afk for a moment

Answer 3

seems to me that's something for you alone, which method do YOU find "correct" to get the answer?

Answer 4

Okay give me one second

Answer 5

It's okay celecity and it's the first 3 is method one the the 4-6 is method 2

Answer 6

So which do you think is better?

Answer 7

well... how would YOU solve it or start to solve it?

Answer 8

I just don't really understand it let me see it again

Answer 9

I think you should begin your decision on the first step of how to solve it. Remember when I helped you with foiling? We did similar problems like this :)

Answer 10

Jdoe can you please leave me alone I'm not bothering you i did the test alone i just needed help with 3 questions

Answer 11

I know how I'd do it, but the question is for YOU alone, how would you do it, and what good reasons you have for it

Answer 12

Jdoe go away please I'm trying to LEARN here -_- and yes celecity i do kinda remember the foil.

Answer 13

So I'll give you an alternate example and you can apply it to this problem, sound cool?

Answer 14

Yeah that works!

Answer 15

(x+2)^2

(x+2)(x+2)

See what that exponent just did?

Answer 16

yes you expanded it because of the ^2

Answer 17

Right so it means you need to multiply it by itself. So what is the first step of the problem above going to do?

Answer 18

Your going to do x *x =x^2 right?

Answer 19

Well, yes, that is true. That is the first step of foiling. But I meant your (x − 3)^2 problem ;) What is that first step going to look like?

Answer 20

ohhh loll it is going to look like (x-3)(x-3)

Answer 21

Yup. So look at your methods again, and tell me which models that process :d

Answer 22

ok

Answer 23

OHHHHHHHH 0_0 Method 1 is correct

Answer 24

@celecity can you help me with one more

Answer 25

Yup! Give me just a moment, okay?

Answer 26

Okay take your time

Answer 27

Almost done, helping someone out

Answer 28

Okay noproblem i'll set up another one so you can get another medal

Answer 29

I'm not medal driven, I just enjoy helping people ^_^ Is your question the one you just posted?

Answer 30

Yup :)