Question

Tema: Ecuaciones con radicales
$\sqrt{2b } = b$
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Answer 1

Respuesta:

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Tema: Ecuaciones con radicales

$\bf \sqrt{2b} = b$

$\bf2b = {b}^{2}$

$\bf2b - {b}^{2} = 0$

$\bf \: b \times (2 - b) = 0$

$\bf \: b = 0 \: \: \: \: \: \: \: \: \: \: \\ \bf2 - b = 0$

$\bf \: b = 0 \\ \bf \: b = 2$

$\bf \sqrt{2 \times 0} = 0 \\ \bf \sqrt{2 \times 2} = 2$

$\bf0 = 0 \\ \bf2 = 2$

$\bf \: b = 0 \\ \bf \: b = 2$

$\boxed{ \bf b_{1} = 0, b_{2} = 2 }$

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