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OpenStudy (anonymous):
Which trinomial is the product of the binomials (4n + 5m)(3n – m)?
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OpenStudy (anonymous):
A. 7n² + 4mn – 5m² B. 12n² + 11mn – 5m² C. 12n² + 11mn + 5m² D. 12n² + 19mn – 5m²
OpenStudy (anonymous):
(4n + 5m)(3n – m) 4n*3n + 5m*3n -4n*-m+5m*-m 12n^2 + 15mn +4nm -5m^2 12n^2 + 18nm -5m^2
OpenStudy (anonymous):
that 18 is supposed to be a 19mn
OpenStudy (anonymous):
thank you :)
OpenStudy (anonymous):
you're welcome
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