Question

encuentra el valor de equis
$\frac{x}{6} = \frac{3}{x} \:$





$\frac{x - 2}{x - 5} = \frac{2x + 1}{x - 1}$
​

Answer 1

Explicación paso a paso:

x * x = 6 * 3

x² = 18

x² = √(9*2)

x = 3√2

(x - 2) (x - 1) = (x - 5) (2x + 1)

x² - 2x - x + 2 = 2x² + x - 10x - 5

x² - 3x + 2 = 2x² - 9x - 5

9x - 3x + 2 + 5 = 2x² - x²

6x + 7 = x²

0 = x² - 6x - 7

0 = (x - 7) (x + 1)

x - 7 = 0 ----> x = 7

x + 1 = 0 ----> x = -1