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Layenderson
@Layenderson
December 2019
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25 Pontos agora, Com a formula de Bhaskara resolva.
A) x²+6x+9=0
B) x²-4x+4=0
C) 4x²-12x+9=0
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isabellearcang
Δ = b² - 4.a.c
Δ = (6)² - 4 . 1 . 9
Δ = 36 - 36
Δ = 0
x = -b +- √Δ / 2.a
x = - 6 +- √0 /2.1
x= -6 +- 0 / 2
x1 = -6 / 2 = - 3
x2 = -6 / 2 - 3
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Thanks 0
jjzejunio
A) x² + 6x + 9 = 0
delta = 6² - 4.1.9
delta = 36 - 36
delta = 0
x = -6 ± √0/2.1
x = -6 ± 0/2 = -6/2 = -3
s={ -3 }
.
.
.
B) x² - 4x + 4 = 0
delta = (-4)² - 4.1.4
delta = 16 - 16
delta = 0
x = -(-4) ± √0/2.1
x = 4 ± 0/2 = 4/2 = 2
s={ 2 }
.
.
.
C) 4x² - 12x + 9 = 0
delta = (-12)² - 4.4.9
delta = 144 - 144
delta = 0
x = -(-12) ± √0/2.4
x = 12 ± 0/8 = 12/8 = 3/2
s={ 3/2 }
☆Espero ter ajudado! tmj
0 votes
Thanks 0
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Lista de comentários
Δ = (6)² - 4 . 1 . 9
Δ = 36 - 36
Δ = 0
x = -b +- √Δ / 2.a
x = - 6 +- √0 /2.1
x= -6 +- 0 / 2
x1 = -6 / 2 = - 3
x2 = -6 / 2 - 3
delta = 6² - 4.1.9
delta = 36 - 36
delta = 0
x = -6 ± √0/2.1
x = -6 ± 0/2 = -6/2 = -3
s={ -3 }
.
.
.
B) x² - 4x + 4 = 0
delta = (-4)² - 4.1.4
delta = 16 - 16
delta = 0
x = -(-4) ± √0/2.1
x = 4 ± 0/2 = 4/2 = 2
s={ 2 }
.
.
.
C) 4x² - 12x + 9 = 0
delta = (-12)² - 4.4.9
delta = 144 - 144
delta = 0
x = -(-12) ± √0/2.4
x = 12 ± 0/8 = 12/8 = 3/2
s={ 3/2 }
☆Espero ter ajudado! tmj