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2da0s0ha21
@2da0s0ha21
July 2022
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Уравнения 8 класс
1)x^4-3x^2+2=0
2)3x*(3x^2+2)/(x^2+5)=4
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Answers & Comments
erzhan9210
1) х⁴-3х²+2=0
x²=a
a²-3a+2=0
D=3²-4*2=9-8=1
a=(3±1)/2
a1=4/2=2
a2=2/2=1 =>
x²=2
x=±√2
x²=1
x=±√1=±1
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2da0s0ha21
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Answers & Comments
x²=a
a²-3a+2=0
D=3²-4*2=9-8=1
a=(3±1)/2
a1=4/2=2
a2=2/2=1 =>
x²=2
x=±√2
x²=1
x=±√1=±1