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OpenStudy (anonymous):
Need help with Polynomials (2x - 3y)(4x - y) Alright so I used FOIL I got 8x|2xy|12y|4y But I dont know if I should add or subtract..
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OpenStudy (notsmartatall):
8x^2-14xy+3y^2
OpenStudy (anonymous):
but do you know to add or subtract???
OpenStudy (anonymous):
How do you know*
OpenStudy (notsmartatall):
what part are you talkin bout?!
OpenStudy (anonymous):
after I use foil and do everything i dont know if I should add or subtract
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OpenStudy (anonymous):
Im lost after the 3rd part
OpenStudy (anonymous):
Do you get what im saying
OpenStudy (notsmartatall):
when you multiply, you get 8x^2-2xy-12xy+3y^2 combine like terms -2xy-12xy= -14xy then bring down the other 2 8x^2-14xy+3y^2 |dw:1383594480856:dw|
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