Question

I have another one. Find the product of: (9x-5y)(9x-5y).

Answer 1

and then I got 81x-45xy-45xy+25y

Answer 2

81x^2-45xy-4xy+25y^2

Answer 3

81x^2-90xy+25y^2

Answer 4

is the answer 81x+90xy+25y

Answer 5

oh

Answer 6

81x^2+25y^2-90xy

Answer 7

o.o

Answer 8

umm..

Answer 9

i think mines right

Answer 10

yeah me too

Answer 11

wait but if the x is to the second power then the y should be too right

Answer 12

I'm not sure whos right

Answer 13

its only to the second power if you multiply the same letter twice

Answer 14

blue has a mistake

Answer 15

(9x-5y)^2

Answer 16

81x^2+25y^2-90x

Answer 17

the right answer is 81x^2-90xy+25y^2

Answer 18

woot

Answer 19

no, i dont think so

Answer 20

you have to foil

Answer 21

it is just (a-b)^2

Answer 22

i am fairly confident in my answer

Answer 23

me too

Answer 24

i am (fairly)^2 confident

Answer 25

oh my gosh lol, I don't know

Answer 26

me and langrange have the same answer so its prolly right o.o

Answer 27

if you are not sure, try expanding it your self

Answer 28

blue did not add the two middle terms togehter

Answer 29

i did on my first answer

Answer 30

just mistyped the second

Answer 31

it is 81x^2+25y^2-90xy

Answer 32

okay so then we all have the correct answer