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nikola2280
@nikola2280
June 2022
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x в квадрате+ 2x-3=0 помогите решить
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hollowcaust
X^2+2x+3=0
D=b^2-4ac
D=4+4*3+16+4^2
x1= -b+кореньизd/2
x2= -b-кореньизd/2
x1=(-2+4)/2=1
x2=(-2-4)/2=-3
6 votes
Thanks 10
natacheraneva
Может так))))))))))))
3 votes
Thanks 6
nikola2280
а можешь решить графически а пожалуйста:))
hollowcaust
оо , извини , я аналитик )\
nikola2280
помогите
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Answers & Comments
D=b^2-4ac
D=4+4*3+16+4^2
x1= -b+кореньизd/2
x2= -b-кореньизd/2
x1=(-2+4)/2=1
x2=(-2-4)/2=-3