7t(8-t)=15t^2(t-8) Срочно !

15t²(t-8)+7t(t-8)=0t(t-8)(15t+7)=0t=0t-8=0⇒t=815t+7=0⇒t=-7/15

7t( 8 - t ) = 15t^2 ( t - 8 ) -7t ( t - 8 ) = 15t^2 ( t - 8 ) t1 = 8 - 7t = 15t^2 - 7 = 15t t = - 7/15 ; Отает 8 ; - 7/15