$x = 0, 1, 4$
Work Step by Step
$x^3-5x^2+4x=0$ $x(x^2-5x+4)=0$ $x(x-1)(x-4)=0$ $x-1=0$ $x-1+1=0+1$ $x=1$ $x-4=0$ $x-4+4=0+4$ $x=4$
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