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shirot
@shirot
July 2022
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a) 4x² = 9; б)7x2 – 5x = 0; B)2x² – 3x+5=0.
РЕШИТЕ уровнения!!!
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guoloid
Б) 14-5x=0
-5x=-14
x=14/5
В) по дискриминанту
D=9-4×2×5=9-40=-31, нет решений
А) x1= - 3/2
x2= 3/2
Относительно x
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Answers & Comments
-5x=-14
x=14/5
В) по дискриминанту
D=9-4×2×5=9-40=-31, нет решений
А) x1= - 3/2
x2= 3/2
Относительно x