Виписать 5 уравнений повишенной сложности с дробями или степенями

X(в 3 степени) - 4х (2 степени) -4х +16=0
х (2 степени) (х-4)-4(х-4)=0
(х-4)(х-2)(х+2)=0
х1=4
х2=2
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