Question

Will medal

Answer 1

Expand (2x – 2y)5.

32x5 – 80x4y + 160x3y2 – 160x2y3 + 80xy4 – 32y5

32x5 + 160x4y – 320x3y2 + 320x2y3 – 160xy4 + 32y5

32x5 + 80x4y – 160x3y2 + 160x2y3 – 80xy4 + 32y5

32x5 – 160x4y + 320x3y2 – 320x2y3 + 160xy4 – 32y5

Answer 2

.-.

Answer 3

B

Answer 4

maybe you can break the problem this way
(a-b)^3(a-b)^2
we know
(a-b)^3=a^3-b^3-3ab(a-b)
a(-b)^2 = a^2+b^2-2ab

Answer 5

I don't think it is B though

Answer 6

D in my opinion

Answer 7

Ok.. now I'm confused even more

Answer 8

i say D

Answer 9

Guys please don't guess

Answer 10

i agree @ankit042

Answer 11

not a guess i said not i think

Answer 12

Alright well I guess imma go with D

Answer 13

ok

Answer 14

I'll let you know who's right & then I'll medal someone

Answer 15

ok

Answer 16

ok