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Viktoria959
@Viktoria959
August 2022
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помогите пожалуйста решить)))
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ВикаВикторовна
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4 / х-11 + 11 / х-4 = 2
4(х-4)+11(х-11)-2(х-4)(х-11) / (х-4)(х-11) = 0
ОДЗ: (х-4)(х-11)≠0; х≠ 4; 11
4х-16+11х-121-2х²+8х+22х-88 =0
-2х²+45х-225=0
2х²-45х+225=0
D = 2025-1800 = 225
х₁ = 45-15 / 4 = 7,5
х₂ = 45+15 / 4 = 15
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Viktoria959
спасибо)))
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Answers & Comments
Verified answer
4 / х-11 + 11 / х-4 = 24(х-4)+11(х-11)-2(х-4)(х-11) / (х-4)(х-11) = 0
ОДЗ: (х-4)(х-11)≠0; х≠ 4; 11
4х-16+11х-121-2х²+8х+22х-88 =0
-2х²+45х-225=0
2х²-45х+225=0
D = 2025-1800 = 225
х₁ = 45-15 / 4 = 7,5
х₂ = 45+15 / 4 = 15