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PowerF
@PowerF
December 2019
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Equação de 2o grau completo
(2x-3)*(x-8)=34
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jhonyudsonbr
(2X - 3) * (X - 8) = 34
fazendo a distributiva :.
2X² - 16X - 3X + 24 = 34
2X² - 19X -34 + 24 = 0
2X² - 19X - 10= 0 ✓
BASKARA :.
B² - 4 * AC
(19)² * -4 * 2 * (-10)
361 + 80
∆: √441
∆: 21 ✓
AGORA AS RAÍZES :.
(19 ± 21)/ 2 * 2
PRIMEIRA RAÍZ : (19 + 21)/4 = 40/4 = 10 ✓
SEGUNDA RAÍZ :. (19 - 21)/4 = -2/4. = -1/2 ✓
RAÍZES : ({10 e -1/2})
boa noite !! :)
1 votes
Thanks 1
PowerF
Muito obrigado :)
jhonyudsonbr
de nada ! :)
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Lista de comentários
fazendo a distributiva :.
2X² - 16X - 3X + 24 = 34
2X² - 19X -34 + 24 = 0
2X² - 19X - 10= 0 ✓
BASKARA :.
B² - 4 * AC
(19)² * -4 * 2 * (-10)
361 + 80
∆: √441
∆: 21 ✓
AGORA AS RAÍZES :.
(19 ± 21)/ 2 * 2
PRIMEIRA RAÍZ : (19 + 21)/4 = 40/4 = 10 ✓
SEGUNDA RAÍZ :. (19 - 21)/4 = -2/4. = -1/2 ✓
RAÍZES : ({10 e -1/2})
boa noite !! :)