Ответ:
X³-8=(x-2)(x²+2x+4)
8a³+1=(2a+1)(4a²-2a+1)
0.001x³-y³=(0.1x-y)(0.01x²+0.1xy+y²)
8m³-n³=(2m-n)(4m²+2mn+n²)
a³+27b³=(a+3b)(a²-3ab+9b²)
1/8m³+1/27n³=(1/2m+1/3n)(1/4m²-1/6mn+1/9n²)
(9³-7³)/0.4=(9-7)(81+63+49)/0.4=2×193/0.4=386/0.4=386×10/4=965
(15³+12³)/162=(15+12)(225-180+144)/162=(27×189)/162=31+1/2
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Ответ:
X³-8=(x-2)(x²+2x+4)
8a³+1=(2a+1)(4a²-2a+1)
0.001x³-y³=(0.1x-y)(0.01x²+0.1xy+y²)
8m³-n³=(2m-n)(4m²+2mn+n²)
a³+27b³=(a+3b)(a²-3ab+9b²)
1/8m³+1/27n³=(1/2m+1/3n)(1/4m²-1/6mn+1/9n²)
(9³-7³)/0.4=(9-7)(81+63+49)/0.4=2×193/0.4=386/0.4=386×10/4=965
(15³+12³)/162=(15+12)(225-180+144)/162=(27×189)/162=31+1/2