Ответ:
3x
2
−2x−5=0
a=3; b=−2; c=−5;
D=b
−4ac
D=64=8
x
1
=
2∗3
2−
64
6
2−8
=−1;
2+
2+8
=1.6
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Ответ:
3x
2
−2x−5=0
a=3; b=−2; c=−5;
D=b
2
−4ac
D=64=8
2
x
1
=
2∗3
2−
64
=
6
2−8
=−1;
x
2
=
2∗3
2+
64
=
6
2+8
=1.6