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Luniix
@Luniix
December 2019
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Utilize a fatoração para resolver a equação a seguir:
x²-8x+16=49.
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kjmaneiro
Vamos lá...
Pela fatoração
x²-8x+16=49
(x-4)²=49
(x-4)= ±√49
x-4=±7
logo
x-4=7 e x-4=-7
x=7+4 x=-7+4
x=11 x=-3
S={ -3, 11}
2 votes
Thanks 1
kjmaneiro
BLZ!!!♥
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Lista de comentários
Pela fatoração
x²-8x+16=49
(x-4)²=49
(x-4)= ±√49
x-4=±7
logo
x-4=7 e x-4=-7
x=7+4 x=-7+4
x=11 x=-3
S={ -3, 11}