0,16.
Объяснение:
4m(3+5m)-(m+1)(m-2) = 12m + 20m²-(m²-2m+m-2) = 20m²+12m-m²+m+2 = 19m²+13m+2 = 19*(-0,2)²+13*(-0,2)+2 = 19*0,04-2,6+2 = 0,76-0,6 = 0,16
решено верно
4m(3+5m)-(m+1)(m-2) =12m+20m²-m²+2m-m+2= 19m²+13m+2;
19×(-0,2)²+13×(-0,2)+2=0,76-2,6+2=0,16
0,16.
Объяснение:
4m(3+5m)-(m+1)(m-2) = 12m + 20m²-(m²-2m+m-2) = 20m²+12m-m²+m+2 = 19m²+13m+2 = 19*(-0,2)²+13*(-0,2)+2 = 19*0,04-2,6+2 = 0,76-0,6 = 0,16
решено верно
Объяснение:
4m(3+5m)-(m+1)(m-2) =12m+20m²-m²+2m-m+2= 19m²+13m+2;
19×(-0,2)²+13×(-0,2)+2=0,76-2,6+2=0,16