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bema15
@bema15
August 2022
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Решите пожалуйста биквадратное уравнение: 2×^4 -9×^2+4=0
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Evgenia4836
Verified answer
X²=t
2t²-9t+4=0
D=81-32=49
t1= (9-7)/4= 1/2
t2= (9+7)/4= 4
x1=+-1/√2
x2=+-2
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Answers & Comments
Verified answer
X²=t2t²-9t+4=0
D=81-32=49
t1= (9-7)/4= 1/2
t2= (9+7)/4= 4
x1=+-1/√2
x2=+-2