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107896
@107896
August 2022
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1.3х²=27
2.2х²+5х+4=0
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soloromv
1) 3x^2=27
x^2=9
x1=3
x2=-3
2)2x^2+5x+4=0
D=b^2-4ac
D=5^2-4*4*2=25-32<0 => корней нет
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Answers & Comments
x^2=9
x1=3
x2=-3
2)2x^2+5x+4=0
D=b^2-4ac
D=5^2-4*4*2=25-32<0 => корней нет