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 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
 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

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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
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