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Serge17
@Serge17
July 2022
1
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помогите решить срочно!!
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mmb1
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1. второе x²+1=0 не имеет действительных корней
2/(3x+2)²-(5+2x)²=17
9x²+12x+4-25-20x-4x²=-17
5x²-8x-4=0
D=64+80=144
x1=(8+-12)/10= 2 -4/10
16/20
3/ -3x²-5x+6=0
x1x2=c/a=6/-3=-2
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Answers & Comments
Verified answer
1. второе x²+1=0 не имеет действительных корней2/(3x+2)²-(5+2x)²=17
9x²+12x+4-25-20x-4x²=-17
5x²-8x-4=0
D=64+80=144
x1=(8+-12)/10= 2 -4/10
16/20
3/ -3x²-5x+6=0
x1x2=c/a=6/-3=-2