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meowlody2003
@meowlody2003
August 2022
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упростите выражение (3/x-3-x)+(15/x^2-9)-(2/x)
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litanalove
Verified answer
3/(x -3) -(x +15)/(x² -9) - 2/x =
=(3x(x+3) -x(x +15) -2(x -3)(x +3)) /x(x -3)(x+3) =
=((3x² +9x -x² -15x -2(x² -9)) /x(x -3)(x +3) =
=(2x² -6x -2x² +18) /x(x -3)(x +3) =
=(-6x +18) /x(x -3)(x +3) =
= -6(x -3) /x(x -3)(x +3) =
= -6 /x(x+3).
36 votes
Thanks 61
meowlody2003
Спасибо! Большое!
litanalove
пожалуйста
Ева53792
при каких целых значениях a является ч
харб2002
это уравнение?
MupoTBopec
Verified answer
(3/x-3)-(x+15/x^2-9)-(2/x) =
35 votes
Thanks 54
MupoTBopec
Вроде так
meowlody2003
спасибо С:
litanalove
пожалуйста
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Answers & Comments
Verified answer
3/(x -3) -(x +15)/(x² -9) - 2/x ==(3x(x+3) -x(x +15) -2(x -3)(x +3)) /x(x -3)(x+3) =
=((3x² +9x -x² -15x -2(x² -9)) /x(x -3)(x +3) =
=(2x² -6x -2x² +18) /x(x -3)(x +3) =
=(-6x +18) /x(x -3)(x +3) =
= -6(x -3) /x(x -3)(x +3) =
= -6 /x(x+3).
Verified answer
(3/x-3)-(x+15/x^2-9)-(2/x) =