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dubayy
@dubayy
July 2022
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уравняние :
А)6х³ + 8х²+х=0 Б) (х-2) (х²+х)=0
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ТатМих
Verified answer
А)6х³ + 8х²+х=0
х(6х*2+8х+1)=0
х=0
6х*2+8х+1=0
D=64-4*6=40
√D=√40
х1=(-8+
√40)/12=(-8+2√10)/12=(-4+√10)/6=(-4+√4*2.5)/6=(-2+2√2.5)/6=
(-1+√2.5)/3
х2=(-8-√40)/12=(-8+2√10)/12=
(-1-√2.5)/3
(х-2) (х²+х)=0
х-2=0
х=2
х*2+х=0
х(х+1)=0
х=0
х=-1
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Answers & Comments
Verified answer
А)6х³ + 8х²+х=0х(6х*2+8х+1)=0
х=0
6х*2+8х+1=0
D=64-4*6=40
√D=√40
х1=(-8+√40)/12=(-8+2√10)/12=(-4+√10)/6=(-4+√4*2.5)/6=(-2+2√2.5)/6=(-1+√2.5)/3
х2=(-8-√40)/12=(-8+2√10)/12=(-1-√2.5)/3
(х-2) (х²+х)=0
х-2=0
х=2
х*2+х=0
х(х+1)=0
х=0
х=-1