doodlebop
How do i expand ( x + 7 )( x- 7) Explain pleasse!!!
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robinfr93
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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.
:)
Shealah
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lol.. You are a Doodlebop!!! :D
robinfr93
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:P
hehehhehehehhehehe..
doodlebop
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Its x^2- 49?
doodlebop
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Late answer, i was busy lol
robinfr93
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ooooooooooooooooh so this is what you meant by me being a doodlebop!!!
:O
doodlebop
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?
robinfr93
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read the top comments mate...
:P
doodlebop
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Did i get it wrong ???? :O
robinfr93
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nah you got it right and in the quicker manner..
I just thought an elongated explanation would be better..