х³+2х²-9х-18=0
х(х²-9)+2(х²-9)=0
(х+2)(х²-9)=0
(х+2)(х-3)(х+3)=0
х+2=0 х-3=0 х+3=0
х=-2 х=3 х=-3
49х³+14х²+х=0
х(49х²+14х+1)=0
х(7х+1)²=0
х=0 7х+1=0
7х=-1
х=-1/7
х³-4х=0
х(х²-4)=0
х(х-2)(х+2)=0
х=0 х-2=0 х+2=0
х=2 х=-2
m³-4m²-25m+100=0
m²(m-4)-25(m-4)=0
(m²-25)(m-4)=0
(m-5)(m+5)(m-4)=0
m-5=0 m+5=0 m-4=0
m=5 m=-5 m=4
y³-10y²+25y=0
y(y²-10y+25)=0
y(y-5)²=0
y=0 y-5=0
y=5
Объяснение:
х³+2х²-9х-18=0
х(х²-9)+2(х²-9)=0
(х+2)(х²-9)=0
(х+2)(х-3)(х+3)=0
х+2=0 х-3=0 х+3=0
х=-2 х=3 х=-3
49х³+14х²+х=0
х(49х²+14х+1)=0
х(7х+1)²=0
х=0 7х+1=0
7х=-1
х=-1/7
х³-4х=0
х(х²-4)=0
х(х-2)(х+2)=0
х=0 х-2=0 х+2=0
х=2 х=-2
m³-4m²-25m+100=0
m²(m-4)-25(m-4)=0
(m²-25)(m-4)=0
(m-5)(m+5)(m-4)=0
m-5=0 m+5=0 m-4=0
m=5 m=-5 m=4
y³-10y²+25y=0
y(y²-10y+25)=0
y(y-5)²=0
y=0 y-5=0
y=5
Объяснение: