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elin9a
@elin9a
August 2022
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Решите пожалуйстааа
1.x^2+8x+7=0
2.x^2+5x+4=0
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OBEY4
Х²+8+7=0D=8²-4*1*7=64-28=36Х1=-7+6\2=-1\2=-0,5Х2=-7-6\2=-13\2=-6,5Пример 2)Х²+5+4=0Д=5²-4*1*4=25-16=9Х1=-5+3\2=-2\2=-1Х2=-5-3\2=-8\2=-4
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OBEY4
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