(X-3)(x-2)(x-1)/(-1-3)(-1-2)(-1-1)*-21

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Solution for (X-3)(x-2)(x-1)/(-1-3)(-1-2)(-1-1)*-21 equation: 


x in (-oo:+oo)

-21*(-2-1)*(-1-1)*(((X-3)*(x-2)*(x-1))/(-3-1)) = 0

(-126*(X-3)*(x-2)*(x-1))/(-4) = 0

( x-1 )

x-1 = 0 // + 1

x = 1

( x-2 )

x-2 = 0 // + 2

x = 2

x in { 1, 2 }

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