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Jaciane43
@Jaciane43
December 2019
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X+5=20/x+4= (x diferente de -4)
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decioignacio
X + 5 = __20__
x + 4
x² + 9x + 20 = 20
x² + 9x = 0
x(x + 9) = 0
x = 0 ⇒ x' = 0
x + 9 = 0 ⇒ x'' = -9
V = { -9 0}
Resposta: -9 e 0
2 votes
Thanks 1
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Lista de comentários
x + 4
x² + 9x + 20 = 20
x² + 9x = 0
x(x + 9) = 0
x = 0 ⇒ x' = 0
x + 9 = 0 ⇒ x'' = -9
V = { -9 0}
Resposta: -9 e 0