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Allery
@Allery
August 2022
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2x^2-3x-2=0 c дискриминантом. Подробно
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AnonimusPro
Verified answer
D=(-3)^2-4*2*(-2)=9+16=25=5^2
x1=(-(-3)+5)/(2*2)=8/4=2
x2=(3-5)/4=-1/2=-0,5
Ответ: x1=2; x2=-0,5
1 votes
Thanks 1
Munkush
Verified answer
2x^2 - 3x-2=0
D=(-3)^2 - 4*2*(-2)=9+16=25
x=3+5/4=2
x= 3-5/4= -(1/2) =-0.5
Отв : x1=2 , x2=-0.5
1 votes
Thanks 1
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Answers & Comments
Verified answer
D=(-3)^2-4*2*(-2)=9+16=25=5^2x1=(-(-3)+5)/(2*2)=8/4=2
x2=(3-5)/4=-1/2=-0,5
Ответ: x1=2; x2=-0,5
Verified answer
2x^2 - 3x-2=0D=(-3)^2 - 4*2*(-2)=9+16=25
x=3+5/4=2
x= 3-5/4= -(1/2) =-0.5
Отв : x1=2 , x2=-0.5