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AbraaoLinquom
@AbraaoLinquom
October 2019
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Sabendo-se que x^2 – 6x + m >0, ∇ x E R, determine m
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mgs45
Verified answer
X² - 6x + m > 0
Δ>0
b² - 4ac > 0
(-6)² - 4. 1 . m > 0
36 - 4m > 0
- 4m > - 36 ⇒ aqui troca-se todos os sinais : - fica + e > fica <
4m < 36
m < 36 : 4
m < 9
Resposta: m < 9 ou m > 9
1 votes
Thanks 0
sandradarletep7h0yi
Esclareceu minha duvida....obrigada!
albertrieben
Boa tarde
x² - 6x + m > 0
delta
d² = 36 - 4m
36 - 4m = 0
4m = 36
m = 36/4 = 9
m > 9 ou m < 9
1 votes
Thanks 2
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Lista de comentários
Verified answer
X² - 6x + m > 0Δ>0
b² - 4ac > 0
(-6)² - 4. 1 . m > 0
36 - 4m > 0
- 4m > - 36 ⇒ aqui troca-se todos os sinais : - fica + e > fica <
4m < 36
m < 36 : 4
m < 9
Resposta: m < 9 ou m > 9
x² - 6x + m > 0
delta
d² = 36 - 4m
36 - 4m = 0
4m = 36
m = 36/4 = 9
m > 9 ou m < 9