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klimenkol21
@klimenkol21
July 2022
1
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Решить уравнение : по теме -уравнения сводящиеся к квадратным
1)2/x-5 +14/x=3
2)40/x-2 - 40/x=1
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sangers1959
Verified answer
2/(x-5)+14/x=3 ОДЗ: x-5≠0 x≠5 x≠0
2x+14x-70=3x²-15x
3x²-31x+70=0 D=121
x₁=7 x₂=3¹/₃
Ответ: х₁=7 х₂=3¹/₃.
40/(x-2)-40/x=1 x≠2 x≠0
40x-40x+80=x²-2x
x²-2x-80=0 D=324
x₁=10 x₂=-8
Ответ: х₁=10 х₂=-8.
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Answers & Comments
Verified answer
2/(x-5)+14/x=3 ОДЗ: x-5≠0 x≠5 x≠02x+14x-70=3x²-15x
3x²-31x+70=0 D=121
x₁=7 x₂=3¹/₃
Ответ: х₁=7 х₂=3¹/₃.
40/(x-2)-40/x=1 x≠2 x≠0
40x-40x+80=x²-2x
x²-2x-80=0 D=324
x₁=10 x₂=-8
Ответ: х₁=10 х₂=-8.