RosettaBrussell
RosettaBrussell
12-07-2015
Mathematics
contestada
Simplify: (4b + 3) (2b - 5).
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Аноним
Аноним
12-07-2015
(4b+3) (2b−5)
(4b+3) (2b+−5)
(4b) (2b) + (4b) (−5) +(3) (2b) +(3) (−5)
8b²−20b+6b−15.
= 8b²−14b−15.
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