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Larissa006
@Larissa006
December 2019
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X²- 2x - 35=
Algm sabe responder? Prfvr faça o passo a passo. Esse assunto é trinômio do 2° grau
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PauloLuis
Δ = b^2
- 4.a.c
Δ = -2^2
- 4 . 1 . -35
Δ = 4 - 4. 1 . -35
Δ = 144
Há 2 raízes reais.
x = (-b +- √Δ)/2a
x' = (--2 + √144)/2.1
x'' = (--2 - √144)/2.1
x' = 14 / 2
x'' = -10 / 2
x' = 7
x'' = -5
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Δ = -2^2 - 4 . 1 . -35
Δ = 4 - 4. 1 . -35
Δ = 144
Há 2 raízes reais.
x = (-b +- √Δ)/2a
x' = (--2 + √144)/2.1x'' = (--2 - √144)/2.1
x' = 14 / 2
x'' = -10 / 2
x' = 7
x'' = -5