Question

Which of the following represents the area of a rectangle whose length is x + 4 and whose width is x – 9?

Answer 1

area = length x width

Answer 2

Hmm. You multiply the length and the width.

Answer 3

\( \color{Black}{\Rightarrow (x + 4) \times (x - 9) }\)
Know FOIL?

Answer 4

so im thinking this is a FOIL thing

Answer 5

do you have an answer?

Answer 6

*whistle*

Answer 7

Sshhh she's typing it out.

Answer 8

:s

Answer 9

Yes I know a little about foil ! \[x ^{2}+ 5x – 36 \]
So will that be right ?

Answer 10

hmmm not quite

Answer 11

Naw. Made one mistake right there.

Answer 12

x^2 + 4x - 9x - 36

Answer 13

is that what you got?

Answer 14

\( \color{Black}{\Rightarrow x(x - 9) + 4(x - 9)}\)

Answer 15

\( \color{Black}{\Rightarrow x^2 - 9x + 4x - 36}\)

Answer 16

Looks like you did 9x - 4x C:

Answer 17

Oh so will it be two subtracting signs or should I try again ?

Answer 18

hmm?

Answer 19

\( \color{Black}{\Rightarrow x^2 + (4 - 9)x - 36}\)

Answer 20

try again i guess

Answer 21

Try those parentheses

Answer 22

So will it just be \[x ^{2}-36\]

Answer 23

Hmm?

Answer 24

What is \(4 - 9\)?

Answer 25

5

Answer 26

Not really.

Answer 27

1 - 2 = -1

Answer 28

^big hint

Answer 29

Oh I see my mistake its -5

Answer 30

that's right

Answer 31

YAY!

Answer 32

=)

Answer 33

so what's the exppression now

Answer 34

So the answer will be \[x ^{2}+ 36x – 5 \]

Answer 35

Hmm no

Answer 36

uhmm no?

Answer 37

how did you get 36 x

Answer 38

\( \color{Black}{\Rightarrow x^2 + (4 - 9)x - 36 }\)

Answer 39

Oh wait I wrote the wrong thing

Answer 40

lol

Answer 41

so what's the "right" thing

Answer 42

\[x ^{2}– 5x – 36 \]

Answer 43

that's right

Answer 44

YAY!

Answer 45

congrats :D

Answer 46

;D You are correct-o!

Answer 47

you're getting the hang of this :)

Answer 48

You know I did say that answer already , but you said try again !

Answer 49

you said +?

Answer 50

Lol you said +5x instead of -5x

Answer 51

Great try, though!

Answer 52

You were as close as hell :)

Answer 53

that's scary

Answer 54

close to hell o.O

Answer 55

lol

Answer 56

And then I said oh wait should it be two subtracting signs instead and you was like nope try again so thats why I was so confused o.O

Answer 57

O.O lolol

Answer 58

heh wasnt clear sorry

Answer 59

Dw you got it in the end :D

Answer 60

right

Answer 61

Lol its ok you guys are a big help though !

Answer 62

Thank you! Glad to help :)

Answer 63

\[\color{gray}{\textbf{<tips hat>}}\]

Answer 64

And you're welcome :P

Answer 65

Here comes the \[\Huge $\textbf{HAKA}\]