jpn9503
jpn9503
23-04-2018
Mathematics
contestada
Factor 7x² – 31x – 20.
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Аноним
Аноним
23-04-2018
7x² – 31x – 20 =
(x - 5)(7x + 4)
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watson956
watson956
23-04-2018
there are two answers one is x=-4/7=-0.571 or this second one is x=5.
Answer Link
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