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Шаталка
@Шаталка
August 2022
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плз решите срочно надо
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litanalove
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3/2(x +3) +1/x(x -3) = (3x(x-3)+2(x+3)) /(x -3)(x +3) =(3x²-9x+2x+6) /(x² -9) = (3x² -7x +6) /(x² -9)
1/(x² -9) -(3x² -7x +6)/(x² -9) =0
(1 -3x² +7x -6) /(x² -9) =0
-3x² +7x -5 =0 *(-1)
3x² -7x +5 =0
D=49 -60<0, уравнение корней не имеет
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Answers & Comments
3/2(x +3) +1/x(x -3) = (3x(x-3)+2(x+3)) /(x -3)(x +3) =(3x²-9x+2x+6) /(x² -9) = (3x² -7x +6) /(x² -9)
1/(x² -9) -(3x² -7x +6)/(x² -9) =0
(1 -3x² +7x -6) /(x² -9) =0
-3x² +7x -5 =0 *(-1)
3x² -7x +5 =0
D=49 -60<0, уравнение корней не имеет