x⁴-29x²+100=0
t²-29t+100=0
D= -29²-400=441
√D= 21
t1,2= 29±√D/2= 25;4
x1,2=±5, ±2
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x⁴-29x²+100=0
t²-29t+100=0
D= -29²-400=441
√D= 21
t1,2= 29±√D/2= 25;4
x1,2=±5, ±2