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Trierveiler
@Trierveiler
April 2020
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(CESESP-PE) Qual deve ser o valor de m na equação 2x² - mx - 40 =0 para que a soma de suas raízes seja igual a 8?
A)8 B)16 C)-8 D)-16 E)NDA
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IzzyKoushiro
Verified answer
Espero ter ajudado. :))
10 votes
Thanks 24
IzzyKoushiro
Já tinha percebido. Atualize a página G_G
mozarthrocha
S = -b/a
-b/a = 8
-(-m)/2 = 8
m = 16 (B)
2 votes
Thanks 6
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Verified answer
Espero ter ajudado. :))
-b/a = 8
-(-m)/2 = 8
m = 16 (B)