 МаТеМаТиК200411 
                                                04.06.2020 21:18
                                                
                                                МаТеМаТиК200411 
                                                04.06.2020 21:18
                                             superscholnik1772 
                                                05.06.2020 09:26
                                                
                                                superscholnik1772 
                                                05.06.2020 09:26
                                             sashkaignatoly 
                                                04.06.2020 09:27
                                                
                                                sashkaignatoly 
                                                04.06.2020 09:27
                                             maksim22771 
                                                04.06.2020 09:28
                                                
                                                maksim22771 
                                                04.06.2020 09:28
                                             elenafrolova31 
                                                04.06.2020 09:28
                                                
                                                elenafrolova31 
                                                04.06.2020 09:28
                                             345160 
                                                04.06.2020 09:29
                                                
                                                345160 
                                                04.06.2020 09:29
                                             annzhoravel461 
                                                04.06.2020 09:32
                                                
                                                annzhoravel461 
                                                04.06.2020 09:32
                                             molotower 
                                                13.01.2022 21:37
                                                
                                                molotower 
                                                13.01.2022 21:37
                                             xomidov 
                                                13.01.2022 21:49
                                                
                                                xomidov 
                                                13.01.2022 21:49
                                             Ver2al 
                                                13.01.2022 21:55
                                                
                                                Ver2al 
                                                13.01.2022 21:55
                                            
1) m-t/m+t - m+t/m-t = (m-t)^2 - (m+t)^2/m^2 - t^2 = m^2 - 2mt + t^2 - m^2 - 2mt - t^2/m^2 - t^2 = - 4mt/m^2 - t^2
2)(m+t)(m-t)-m(m-2t) = m^2 - t^2 - m^2 + mt = -t^2 + mt = t(m - t)