Question

Ecuaciones con radicales
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Answer 1

Explicación paso a paso:

hola ✓

a)

$\sqrt{x - 8} = 2$

$x - 8 = 4$

$x = 4 + 8$

$x = 12$

B)

$5 - \sqrt{3x + 1} = 0$

$- \sqrt{3x + 1} = - 5$

$3x + 1= 25$

$3x = 25 -1$

$3x = 24$

$x = 8$

C)

$\sqrt{5x - 19} - \sqrt{5x} = 1$

$10x - 19 - 2 \sqrt{5x(5x - 19)} = 1$

$20x(5x - 19) = {100x}^{2} - 400x + 400$

${100x}^{2} - 380x = {100x}^{2} - 400x + 400$

$20x = 400$

$x = 20$

espero te sirva saludos