Question

Multiply. Give your answer in standard form.
(2n2+5n+4)(2n-4)

Answer 1

Is that 2n^2?

Answer 2

Foil it out.

Answer 3

http://prntscr.com/75wvtk

Answer 4

i think it is @Sammii09

Answer 5

@kidrah69 when i clicked on your link, it took me to a blank page with adds.

Answer 6

That shouldnt have done that :/ ok lets just solve it
2n^2 x 2n?

Answer 7

(2n^2+5n+4)(2n-4)

Answer 8

2n^2 x 2n?

Answer 9

answer that we are foiling it out :)

Answer 10

Do you know what foil is?

Answer 11

fist outer inner last

Answer 12

but i always have trouble doing it.

Answer 13

Well its just like distributing :) in this case you will multiply 2n^2 to everything on the next set of parentheses :)

Answer 14

Try it out

Answer 15

but it is in the same parentheses as most the other numbers...

Answer 16

ok i will ask you will answer:P
what is 2n^2 x 2n?

Answer 17

4n^2?

Answer 18

Careful we have another n right so it will be 4n^3

Answer 19

okay

Answer 20

Next
2n^2 x -4 =?

Answer 21

-8^2??

Answer 22

you left the n out :C
-8n^2
now we do the next number
5n x 2n = ?

Answer 23

10n?

Answer 24

We have 2 ns so 10n^2

Answer 25

next
5n x -4 =?

Answer 26

-20n?

Answer 27

yep =)
4 x 2n =?

Answer 28

8n?

Answer 29

-4 x 4= ?

Answer 30

-16??

Answer 31

Good.
\[4n^3-8n^2+ 10n^2-20n+8n -16 \]
combine all of the like terms

Answer 32

4n^3-46^2-16??

Answer 33

i dont think i did that right...

Answer 34

not quite :)
4n^3 looks good
-46^2 no...thats wrong
what is 10-20?

Answer 35

Here this is what you should have gotten
http://prntscr.com/75x6gm

Answer 36

ohhhhhh i get it! okay thank you! can you help me with one more?

Answer 37

ill give you a metal for sure

Answer 38

xD thanks :3 but u need to post it again :)

Answer 39

Which means close this and reopen another post :)

Answer 40

okay cool!

Answer 41

also
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Answer 42

:D