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Sallslara
@Sallslara
December 2019
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Dada a função f (x)=2-4x, calcule: X para que f (x)=10
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Jayrobeys
F(x) = 2 - 4x
calcular x para que f(x) = 10
iguala a função a 10
2 - 4x = 10
- 4x = 10 - 2
- 4x = 8 (-1)
4x = - 8
x = - 8 / 4
x = - 2
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pgdaap
F(x) = 2- 4.x temos f(x) = y = 10 logo...
10 = 2-4.x
8 = -4.x
-2 = x
f(-2) = 10 = 2 -4 . (-2)
Espero ter ajudado :)
1 votes
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Lista de comentários
calcular x para que f(x) = 10
iguala a função a 10
2 - 4x = 10
- 4x = 10 - 2
- 4x = 8 (-1)
4x = - 8
x = - 8 / 4
x = - 2
10 = 2-4.x
8 = -4.x
-2 = x
f(-2) = 10 = 2 -4 . (-2)
Espero ter ajudado :)