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karina20031985
@karina20031985
July 2022
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х^2+3х-18=4 решение пожалуйста, решается через дискриминант!!!!!!
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janka24
D=9-4×1×(-18)=9+72=81, {81}=9
х1=-3+9/2=3
х2=-3-9/2= -6
Ответ: х=3; -6.
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Answers & Comments
х1=-3+9/2=3
х2=-3-9/2= -6
Ответ: х=3; -6.