Question

Equação do 2° grau ײ-2×+1=0

Answer 1

Resposta:

Olá,

$\boxed{x^2 - 2x + 1 = 0}\\\boxed{a = 1}\\\boxed{b = 2}\\\boxed{c = 0}$

$\Delta = b^2 - 4ac\\\Delta = 2^2 - 4 \times 1 \times 1\\\Delta = 4 - 4 \times 1 \times 1\\\Delta = 4 - 4 \times 1\\\Delta = 4 - 4\\\Delta = 0$

$x = \dfrac{-b \pm \sqrt\Delta}{2a}$

$x = \dfrac{-2 \pm \sqrt{0}}{2 \times 1}$

$x = \dfrac{-2 \pm 0}{2}$

$x' = \dfrac{-2 + 0}{2}\\\\x' = \dfrac{-2}{2}\\\\x' = -1$

$x" = \dfrac{-2 - 0}{2}\\\\x" = \dfrac{-2}{2}\\\\x" = -1$

$\boxed{\boxed{S = (-1 ; -1)}}$

Ω | Ass: Fallen Angel | Ω

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Espero ter ajudado!