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CutiePieMarzia1
@CutiePieMarzia1
August 2022
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помогите плз !!!!!!!*******
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koreshilov00
2x^2+5x-3=0
D=25-4*2*(-3)=49
√D=√49=7
x1=-5+7/4=1/2
x2=-5-7/2=-6
+ _ +
----o---------o----->x
-6 1/2
x принадлежит (-бесконеч.;-6)U(1/2;+бесконеч.)
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Answers & Comments
D=25-4*2*(-3)=49
√D=√49=7
x1=-5+7/4=1/2
x2=-5-7/2=-6
+ _ +
----o---------o----->x
-6 1/2
x принадлежит (-бесконеч.;-6)U(1/2;+бесконеч.)