Question

СРОЧНО! СОКРАТИТЕ ДРОБИ

Answer 1

$1)\frac{10x^{3}-15ax^{2}}{21ax^{3}-14x^{4}}=\frac{5x^{2}*(2x-3a)}{7x^{3}*(3a-2x)} =-\frac{5}{7x}\\\\2)\frac{x^{2}-4x+4}{5x^{2}-10x}=\frac{(x-2)^{2}}{5x(x-2)}=\frac{x-2}{5x}$