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OpenStudy (anonymous):
(x + 2y)(3x − 4y + 5)
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OpenStudy (kc_kennylau):
(x+2y)(3x-4y+5) =x(3x-4y+5)+2y(3x-4y+5) =3x^2-4xy+5x+6xy-8y^2+10y =3x^2+2xy-8y^2+5x+10y
OpenStudy (anonymous):
Okay I still kind of don't understand that.
OpenStudy (anonymous):
Oh I see now. Thank you.
OpenStudy (kc_kennylau):
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