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madina1999g
@madina1999g
December 2021
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3x^2- 7,5x-27/ 3x^2+10,5x-13.5
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pro100ilya001
3х^2-7.5х-27/3х^2+10.5х-13.5=(x-4.5)(x+2)/(x-1)(x+4.5) 3х^2-7.5х-27|÷3 х^2-2.5х-9=(х-4.5)(х+2) D=b^2-4ac=6.25+36=42.25=6.5^2 x1,2=2.5+-6.5/2=x1=4.5 x2=-2 3x^2+10.5x-13.5|÷3 x^2+3.5-4.5=(x-1)(x+4.5) D=12.25+18=5.5^2 x1.2=-3.5+-5.5/2=x1=1 x2=-4.5
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pro100ilya001
блин все съехало
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