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ЗаНоЗа012002
@ЗаНоЗа012002
August 2022
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решите уравнения 1) 5x^3-5x=0
2)64x^3-16x^2+x=0
3)x^3-3x^2-4x+12=0
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Answers & Comments
litanalove
1) 5x(x^2-1)=0, 5x=0, x1=0
(x-1)(x+1)=0, X2-1=0, X2=1, x3+1=0, x3= -1
2) x(64x^2-16x+1)=0
x1=0,
64x^2-16x+1=0 D=256-256=0
X2,x3=16/2=8 сомневаюсь в решении
3) x^2(x-3)-4(x-3)=0
(x-3)(x^2-4)=0, x-3=0, x1=3
x^2-4=0, (x-2)(x+2)=0, X2=2, x3= -2
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Answers & Comments
(x-1)(x+1)=0, X2-1=0, X2=1, x3+1=0, x3= -1
2) x(64x^2-16x+1)=0
x1=0,
64x^2-16x+1=0 D=256-256=0
X2,x3=16/2=8 сомневаюсь в решении
3) x^2(x-3)-4(x-3)=0
(x-3)(x^2-4)=0, x-3=0, x1=3
x^2-4=0, (x-2)(x+2)=0, X2=2, x3= -2