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ДженниЛенни
@ДженниЛенни
July 2022
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а) х^2+19х+48=0
б) -8х^2+16х+10=0
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Answers & Comments
eldar9932000
1) a=1 D = b^-4×a×c =19^ -4×2×48= 361- 384 =-23
решение нет
b=19
c=48
2 votes
Thanks 0
MrDark228
А) х²+19х+48=0
а=1,b=19,c=48.
D=b²+4ac=19²+4*1*48=361+192=553>0
-b+√D -19+23,5
x¹=----------=-------------=2,25
-b-√D -19-23,5 -42,5
x²=--------=------------=--------=-21,25
Ответ;:-21,25 и 2,25
2a 2 2
2a 2
3 votes
Thanks 2
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Answers & Comments
решение нет
b=19
c=48
а=1,b=19,c=48.
D=b²+4ac=19²+4*1*48=361+192=553>0
-b+√D -19+23,5
x¹=----------=-------------=2,25
-b-√D -19-23,5 -42,5
x²=--------=------------=--------=-21,25
Ответ;:-21,25 и 2,25
2a 2 2
2a 2