Question

How do i expand ( x + 7 )( x- 7) Explain pleasse!!!

Answer 1

since you have 4 terms here, the output should be, n^2 - 1 terms.
Now to solve this follow this order..
(a+b)(a-b) => (a+b)(a+(-b))

1) a*a
2)a*-b
then
3)b*a
4)b*-b

Add them all and solve.
Hope this Helps.
:)

Answer 2

lol.. You are a Doodlebop!!! :D

Answer 3

:P
hehehhehehehhehehe..

Answer 4

Its x^2- 49?

Answer 5

Late answer, i was busy lol

Answer 6

ooooooooooooooooh so this is what you meant by me being a doodlebop!!!
:O

Answer 7

?

Answer 8

read the top comments mate...
:P

Answer 9

Did i get it wrong ???? :O

Answer 10

nah you got it right and in the quicker manner..
I just thought an elongated explanation would be better..