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Dandelin
@Dandelin
August 2022
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Решите, пожалуйста, уравнение
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армения20171
Х²+2√5х-20=0
Д=(2√5)²+80=20+80=100=10²
х=(-2√5±10)/2=-√5±5
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Answers & Comments
Д=(2√5)²+80=20+80=100=10²
х=(-2√5±10)/2=-√5±5