Question

упростить выражение
3х-21/х²-14х+49

Answer 1

$\frac{3 - 21}{x {}^{2} - 14x + 49} \\ \\ \frac{ - 18}{x {}^{2} - 14x + 49} \\ \\ - \frac{18}{x {}^{2} - 14x + 49 }$