rannsan
Multiply and Simplify: (x + 4)(x + 3)
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rannsan
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2xy(7z + 12y)
rannsan
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that is not right
rannsan
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12x^2
Rohangrr
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\[\huge Use \ (x+a) (x+b)=x^2+ax+bx+ab \\ \huge = x^2 + 4x + 3x + 12 \]
Rohangrr
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@rannsan do u get that
AriPotta
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that's FOIL, right? i think it would be better if you explained what exactly to do rather than giving an equation, but that's just me
rannsan
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I did not get that
AriPotta
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you have to use FOIL. First times First, Outer times Outer, Inner times Inner, and Last times Last
Rohangrr
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1 multiply the first numbers in both the parenthesis x & x
2 multiply the outer numbers in both parenthesis ( x & b)
3 multiply the inner numbers (x&a)
4 multiply the last numbers ( a &b)
Source(s): wiki
rannsan
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ok this is gonna sound really stupid on my part but how can I multiply if I don't know what x is?
AriPotta
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|dw:1348910674893:dw|
x times x equals 2x
AriPotta
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but that shows what's what if you can understand it
hartnn
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* x times x = x^2
AriPotta
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wait no, x^2
AriPotta
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yea, sorry!
rannsan
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ok
AriPotta
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does that make sense? do you know what to do now?
rannsan
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x^+12?
rannsan
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x^2+12 that is
AriPotta
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what did you do to get that? you're missing something
rannsan
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x^2+7x+12
AriPotta
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yep :)
rannsan
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whewwwwwwwwwwwwww
AriPotta
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good job :D
UsukiDoll
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lol what's with that big equation? XD
AriPotta
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a confusing equation of FOIL lol
UsukiDoll
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I know right. BIG FONT!
hartnn
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isn't LATEX interesting?
UsukiDoll
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that program that allows words and equations to go together
AriPotta
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what's latex? A milky fluid found in many plants, such as poppies and spurges, that exudes when the plant is cut and coagulates on exposure to the air. The latex of the rubber tree is the chief source of natural rubber?
hartnn
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lol!
hartnn
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can u write this : \(x^2\)
AriPotta
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2
\[x ^{2}\]
UsukiDoll
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\[x^{2}\]
AriPotta
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so the program that allows us to write that is LATEX? what does it mean?
AriPotta
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like, what's it stand for?
UsukiDoll
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yeah for higher level math courses to write papers about equations. lol is it hard to write a paper about a formula? I may need to do that next semester.
hartnn
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yup, the formatting way is called latex...
UsukiDoll
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ummm Lamb Alligator Tiger Elephant Xanda lol Xanda Panda
hartnn
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lol !
UsukiDoll
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does anyone have experience in Linear Algebra?
AriPotta
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when i first read your comment "isn't LATEX interesting?" i thought you were making a sexual joke and latex was in all caps because you were emphasizing what you wanted.
UsukiDoll
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oh like Latex ahhem all the boys should know
UsukiDoll
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LOL Martha Speaks icon
hartnn
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any specific question @UsukiDoll
UsukiDoll
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yeah you got experience in LInear Algebra? what's it like?
AriPotta
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a harry potter, martha speaks icon
AriPotta
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martha's decked out in scar and wand
hartnn
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much like algebra.....equations and matrices.....
UsukiDoll
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so you've taken the course?
hartnn
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i have completed that years ago.....
AriPotta
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years upon years.
UsukiDoll
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lol help a future mathematician out X)
hartnn
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sure....whats the doubt ?
UsukiDoll
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ummm everything. lol I'm scared of taking Linear Algebra. x*
hartnn
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don't be scared, with practice its easy.....and i'll be here to help u with any difficult problem....
UsukiDoll
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thanks