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kapeglazka
@kapeglazka
July 2022
1
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ПОМОГИТЕ ПОЖААЛУЙСТА!!,)) решите уравнение : 1) 2х
^2 - 11х+12=0 ;
2) 2
х^2 +х+16=0
1))) по теореме ,обратной т.Виета : 1)
х^2 +14х+45=0 ; 2)6х - 5х^2=0 ; 3) 64х^2 = 1
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Skoruykosha
1) 2x²-11x+12=0
D=(-11)²-4*2*12=121-96=25 √D=√25=5
x1=16/4=4
x2=6/4=1,5
2) 2x²+x+16=0
D=1²-4*2*16=1-126<0 уравнение не имеет реш.
Дальше хз
2 votes
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Answers & Comments
D=(-11)²-4*2*12=121-96=25 √D=√25=5
x1=16/4=4
x2=6/4=1,5
2) 2x²+x+16=0
D=1²-4*2*16=1-126<0 уравнение не имеет реш.
Дальше хз