помогите, у меня завтра кр
2х2 + 4х + 2
------------------ =
3х2 - 6х - 9
D - ?
х1 - ?
х2 - ?
2х2 + 4х + 2
------------------ =
3х2 - 6х - 9
D - ?
х1 - ?
х2 - ?
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x=-4/4=-1
2.D=36-4*(-9)*3=36+108=144
x1=(6+12)/6=3
x2=(6-12)/6=-1
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х+2
+.
7.
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3х2 -3х -10