Mathematics
7 Online
OpenStudy (anonymous):
Hi can you help me with this I'm not sure i understand how to solve it....
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OpenStudy (anonymous):
picture?
OpenStudy (anonymous):
wait a sec i'm not tagged
OpenStudy (anonymous):
nvm
OpenStudy (anonymous):
oh you can help @Molly_Qian
OpenStudy (anonymous):
:P ok so uh what do you need help on?
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OpenStudy (anonymous):
OpenStudy (anonymous):
That^
OpenStudy (anonymous):
I was thinking it was the first one
OpenStudy (anonymous):
lol ok so uh what can you get from that?
OpenStudy (anonymous):
\((x-2)\times 4\)
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OpenStudy (anonymous):
simplify... you get \(4x-8\)
OpenStudy (anonymous):
you add up all the sides and multiply x times that and then multiply the sides added together by 2 and subtract that
OpenStudy (anonymous):
and see if you can match it with one of the answers... like the first one or something
OpenStudy (anonymous):
it doesn't have to be that complicated u know
OpenStudy (anonymous):
O ok
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OpenStudy (anonymous):
|dw:1425846628850:dw|
OpenStudy (anonymous):
something like that
OpenStudy (anonymous):
i fu look at it this way u can see that the frame is made up of 4 parts
OpenStudy (misty1212):
HI!!
OpenStudy (anonymous):
and each part... is \(x-2\)
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OpenStudy (misty1212):
it is looking for the area
OpenStudy (misty1212):
you are supposed to compute
\[(x+4)^2=(x+4)(x+4)\]
OpenStudy (anonymous):
HI
OpenStudy (anonymous):
but isn't that a bit too complicated?
OpenStudy (misty1212):
oh no nvm i read it wrong
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OpenStudy (misty1212):
you just want the area of the frame right?
OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
ughh i already solved it if u hadn't realized...
OpenStudy (misty1212):
what did you get?
OpenStudy (anonymous):
a
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OpenStudy (anonymous):
Oh okay thank you both!!
OpenStudy (anonymous):
\((x-2)\times 4\)
\(=4x-8\)
\(=8x-16\)