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dashka199
@dashka199
July 2022
2
21
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решите уравнение:
x+(5x+2) в квадрате=25 (1+x в квадрате)
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NA1966
X+ 25x^{2} +20x- 25x^{2} =25-4
21x=21
x=1
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21x=21
x=1