lolabledsoe
lolabledsoe
09-12-2015
Mathematics
contestada
What adds up to -3 and multiplies to -54
Respuesta :
tayv2002
tayv2002
09-12-2015
-9 and 6 add up to -3 and multiplies to -54
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Agita99
Agita99
09-12-2015
a + b = -3
b = -3 - a
ab = -54
a* (-3 - a) = -54
-3a -a^2 = -54
-a^2 -3a + 54 = 0
(-a + 6)(a + 9) = 0
-a + 6 = 0 V a + 9 = 0
a = 6 V a = -9
So, according to my opinion, the numbers are 6 and -9
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