-3,64
Объяснение:
10y³+y²-10y-1 = y²*(10y+1)-(10y+1) = (10y+1)*(y²-1) = (10y+1)*(y-1)*(y+1)
При y = 0.3
(10*0.3+1)*(0.3-1)*(0.3+1) = (3+1)*(-0.7)*1.3 = 4*(-0.7)*1.3 = - 3.64
-3,64
Объяснение:
10y³+y²-10y-1 = y²*(10y+1)-(10y+1) = (10y+1)*(y²-1) = (10y+1)*(y-1)*(y+1)
При y = 0.3
(10*0.3+1)*(0.3-1)*(0.3+1) = (3+1)*(-0.7)*1.3 = 4*(-0.7)*1.3 = - 3.64