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emile20
@emile20
October 2020
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A formula de Bhaskara [tex]- x^{2} +19x-60[/tex]
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emicosonia
A formula
de Bhaskara
-------------------igualar a ZERO
-X² + 19X - 60 = 0--------------------ax² + bx + c = 0
a = -1
b = 19
c = - 60
Δ = b² - 4ac
Δ = 19² - 4(-1)(-60)
Δ= 361- 240
Δ = 121----------------------------------√121 = 11
se
Δ > 0 duas raízes diferentes
então
(baskara)
x = - b
+
√Δ21a
x' = -19 - √121/2(-1)
x' = -19 - 11/-2
x' = -30/-2
x' = + 30/2
x' = 15
e
x" = - 19 + √121/2(-1)
x" = -19 + 11/-2
x" = - 8/-2
x" = +8/2
x" = 4
V = { 4; 15}
1 votes
Thanks 1
maizacruzds
desse jeio ta certo foi assim q aprendi e ta tudo muito bem espricado parabéns!!!!
Iuri99
Não intendi realmente a sua pergunta. Mais acho q é resolver a equação de segundo grau:
-x²+19x-60=0 (-1) Δ= 121 x=19+/-11=x'= 30/2= 15
x²-19x+60+0 2 =x'' =8/2 = 4
0 votes
Thanks 1
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Lista de comentários
-------------------igualar a ZERO
-X² + 19X - 60 = 0--------------------ax² + bx + c = 0
a = -1
b = 19
c = - 60
Δ = b² - 4ac
Δ = 19² - 4(-1)(-60)
Δ= 361- 240
Δ = 121----------------------------------√121 = 11
se
Δ > 0 duas raízes diferentes
então
(baskara)
x = - b + √Δ21a
x' = -19 - √121/2(-1)
x' = -19 - 11/-2
x' = -30/-2
x' = + 30/2
x' = 15
e
x" = - 19 + √121/2(-1)
x" = -19 + 11/-2
x" = - 8/-2
x" = +8/2
x" = 4
V = { 4; 15}
-x²+19x-60=0 (-1) Δ= 121 x=19+/-11=x'= 30/2= 15
x²-19x+60+0 2 =x'' =8/2 = 4