Question

1. (y + 9)2

Answer 1

simply multiply with 2

Answer 2

y2 + 18y
y2 + 9y + 18
y2 + 18y + 81
y2 + y + 81

Answer 3

aaah is it (y+9)^2

Answer 4

idk thats why im asking wht one?

Answer 5

\[(y+9)^{2}\]

Answer 6

right

Answer 7

then you are almost right

Answer 8

you know this (a+b)^2=a^2+b^2+2ab

Answer 9

what one is it?

y2 + 18y
y2 + 9y + 18
y2 + 18y + 81
y2 + y + 81

Answer 10

y2 + 18y + 81

Answer 11

ok thanks