Giải pt giúp mik vs : 200/x -5/6 = 200/x+5 15/11/2021 Bởi Emery Giải pt giúp mik vs : 200/x -5/6 = 200/x+5
$\frac{200}{x}-\frac{200}{x+5}= \frac{5}{6}$ ($x\neq 0, x\neq -5$) $\Leftrightarrow \frac{200x+200.5-200x}{x(x+5)}= \frac{5}{6}$ $\Leftrightarrow 1000= \frac{5}{6}x^2+ \frac{5}{6}.5x$ $\Leftrightarrow \frac{5}{6}x^2+ \frac{25}{6}x-1000=0$ $\Leftrightarrow x_1\approx 32,23; x_2\approx -37,23$ Bình luận
$\frac{200}{x}-\frac{200}{x+5}= \frac{5}{6}$ ($x\neq 0, x\neq -5$)
$\Leftrightarrow \frac{200x+200.5-200x}{x(x+5)}= \frac{5}{6}$
$\Leftrightarrow 1000= \frac{5}{6}x^2+ \frac{5}{6}.5x$
$\Leftrightarrow \frac{5}{6}x^2+ \frac{25}{6}x-1000=0$
$\Leftrightarrow x_1\approx 32,23; x_2\approx -37,23$