Question

сократи дробь: x^2-3x/X^3-3x^2-9x+27

Answer 1

(x²-3x)/(x³-3x²-9x+27)=x*(x-3)/((x²*(x-3)-9*(x-3))=x*(x-3)/((x-3)(x²-9)=x/(x²-9).