Question

сократите дробь 8 классс

Answer 1

36a^12b^7/54a^8b^11=2a^4-b^4;

18mn-27m/9mn=9m(2n-3)/9mn=(2n-3)/n;

(3c+15)/c^2-25=3(c+5)/(c+5)(c-5)=3/c-5