Ответ:
1/4х^2+9-3х=0
1/4х^2-3х+9=0
Д=9-4×1/4×9=0
3
х1=----------=3/4
1/4
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Ответ:
1/4х^2+9-3х=0
1/4х^2-3х+9=0
Д=9-4×1/4×9=0
3
х1=----------=3/4
1/4