Объяснение:
3х^2-14х-5=0
3х^2+х-15х-5=0
Х(3х+1)-5(3х+1)=0
(3х+1)×(х-5)=0
3х+1=0
Х-5=0
3х= - 1
Х=5
Х= - 1/3
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Объяснение:
3х^2-14х-5=0
3х^2+х-15х-5=0
Х(3х+1)-5(3х+1)=0
(3х+1)×(х-5)=0
3х+1=0
Х-5=0
3х= - 1
Х=5
Х= - 1/3