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@271076
August 2022
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Решите уравнение
9x^3+18x^2-x-2=0
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Verified answer
9x³+18x²-x-2=0
9x²(x+2)-(x+2)=0
(x+2)(9x²-1)=0
9(x+2)(x²-1/9)=0
(x+2)(x+1/3)(x-1/3)=0
x+2=0 или х+1/3=0 или х-1/3=0
х₁=-2 х₂=-1/3 х₃=1/3
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Answers & Comments
Verified answer
9x³+18x²-x-2=09x²(x+2)-(x+2)=0
(x+2)(9x²-1)=0
9(x+2)(x²-1/9)=0
(x+2)(x+1/3)(x-1/3)=0
x+2=0 или х+1/3=0 или х-1/3=0
х₁=-2 х₂=-1/3 х₃=1/3