Question

приведите дробь a/x-2 к знаменателю x^3-8

Answer 1

x³-8=x³-2³=(x-2)*(x²+2x+4)

a/(x-2)= (a*(x²+2x+4))/((x-2)*(x²+2x+4))=(a*(x²+2x+4))/(x³-8)