A community for students.
Here's the question you clicked on:
 0 viewing
anthony~
 2 years ago
Expand (x  2y)4.
A: x4 + 8x3y + 24x2y2 + 32xy3 + 16y4
B: x4  8x3y + 24x2y2  32xy3 + 16y4
C: x4  8x3y + 24x2y2  34xy3 + 16y4
D: x4  8x3y + 28x2y2  32xy3 + 16y4
anthony~
 2 years ago
Expand (x  2y)4. A: x4 + 8x3y + 24x2y2 + 32xy3 + 16y4 B: x4  8x3y + 24x2y2  32xy3 + 16y4 C: x4  8x3y + 24x2y2  34xy3 + 16y4 D: x4  8x3y + 28x2y2  32xy3 + 16y4

This Question is Closed

Voidus
 2 years ago
Best ResponseYou've already chosen the best response.0aren't they all the same?

anthony~
 2 years ago
Best ResponseYou've already chosen the best response.0i think its x^4  8x^3y + 24x^2y^2  32xy^3 + 16y^4 (B)

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1they only differ in sign changes

Voidus
 2 years ago
Best ResponseYou've already chosen the best response.0@amistre64 actually that and the coefficients.

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1...28 and 34 .... sneaky

anthony~
 2 years ago
Best ResponseYou've already chosen the best response.0the numbers are different too. the numbers, signs and all that. they're not the same. none of them.

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.11 4 6 4 1 pascal row x x x x 1 power down 1 2y 2y 2y 2y power up 

anthony~
 2 years ago
Best ResponseYou've already chosen the best response.0x^4  8x^3y + 24x^2y^2  32xy^3 + 16y^4??

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=expand+%28x++2y%29%5E4 but yeah, B is good
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.