(x^3 – 2x^2 – 4x + 8 ) / ( 2x^2 – 8) - такая дробь ???
да
точно ???
точно
(x^3 – 2x^2 – 4x + 8 ) / ( 2x^2 – 8) = ( x^2(x – 2) – 4(x-2) ) / 2( x–2)(x+2) = ( x^2–4) (x-2) ) / 2( x–2)(x+2) = ( x–2)(x+2) ) / 2(x+2) = = ( x–2 ) / 2 ( или можно x/2 -1 )