4. Решите уравнение (х2 – 3х + 1)(х – 3х + 3) = 3.​

Амишка51 Амишка51    3   21.01.2021 22:14    2

Ответы
aleksandrakova4 aleksandrakova4  21.01.2021 22:20

(x²-3x+1)(x-3x+3)=3

x³-3x³+3x²-3x²+9x²-9x+x-3x+3-3=0

-2x³+9x²-11x=0

2x³-9x²+11x=0

x(2x²-9x+11)=0

x=0 или 2x²-9x+11=0

D=81-4*2*11<0

ответ:x=0

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