Felixbros
Felixbros
07-12-2016
Mathematics
contestada
help me guys, please
Respuesta :
miriyu
miriyu
07-12-2016
c^2 + 3c - 40 = 0
consider the factors of -40: ±40, ±1, ±8, ±5...those last two could work, if you pair them right. try:
(c + 8)(c - 5)
8 - 5 = 3 and 8*(-5) = -40 so there u go
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