<span>а)1/8 - а³=(0,5)³-a³=(0.5-a)(0.5²+0.5a+a²)=(0.5-a)(0.25-0.5a+a²)
б)125+b³=5³+b³=(5+b)(5²+5b+b²)=</span><span>(5+b)(25+5b+b²)
в)а³+b³=(a+b)(a²-ab+b²)
г)1-64а³=1³-(4a)</span>³=(1-4a)(1²+4a+(4a)²)=(1-4a)(1+4a+16a²)
X³ +5x² +6x =0
x(x²+5x+6) =0
x₁=0 или x²+5x+6=0
x₂=-2; x₃=-3
Ответ: -3; -2; 0
(0.43)²+0.0151-3
1)0.43*0.43=0.1849
2)0.1849+0.0151=0.16949
3)0.16949-3=−2.83051
1. (6y^2-7y-3)+2y^2-50=2-8y+8y^2+6y
8y^2-7y-53=2-2y+8y^2
5y=-55
y=-11