(m³-16m²)/(m²-8m+16)-m=m(m²-16)/(m-4)²-m=[m(m-4)*(m+4)] / (m-4)²-m=m(m+4)/(m-4)-m=[m(m+4)-m(m-4)] / (m-4)=8m/(m-4)
2-й способ упрощения:
(m³-16m²)/(m²-8m+16)-m=[ m³-16m²-m*(m²-8m+16) ] / (m²-8m+16)=(8m²-32m)/(m-4)²=8m*(m-4)/(m-4)²=8m/(m-4)
при m=3,5
8*3,5/(3,5-4)=28,5*(-0,5)=-56