1. 4 х⁴ - 37 х² + 9=0. Created by MolodoyPACAN. algebra-ru

1. 4 х⁴ - 37 х² + 9=0...

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1. 4 х⁴ - 37 х² + 9=0

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dudoser99 Пусть x^2=t, тогда получим
4t^2-37t+9
D=37^2-4*4*9=1225
t1=(37+35)/8=9, t2=(37-35)/8=1/4
Если t1=9, то x1=-3 или x2=3;
Если t2=1/4, то x3=-1/2 или x4=1/2.

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