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Krates752
@Krates752
July 2022
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помогите решить уравнение:
3√x - 7 4^√x + 2 = 0
На фото подробнее расписано.
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mikael2
Verified answer
⁴√x=z 3z²-7z+2=0 D=49-24=25 √D=5
z1=1/6[7+5]=2 z2=1/6[7-5]=1/3
x=z⁴ x1=2⁴=16 x2=1/3⁴=1/81
1 votes
Thanks 1
Krates752
слушай,а какие ответы? 16 и 1/81 ?
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Answers & Comments
Verified answer
⁴√x=z 3z²-7z+2=0 D=49-24=25 √D=5z1=1/6[7+5]=2 z2=1/6[7-5]=1/3
x=z⁴ x1=2⁴=16 x2=1/3⁴=1/81