Rozłóż na czynniki stopnia mozliwie najnizszego wielomian : W(x) = x4-4x3-4x2 +16x.
W(x)=x^3(x-4)-4x(x-4)= (x-4)(x^3-4x)= x(x-4)(x^2-4)= x(x-4)(x-2)(x+2)
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W(x)=x^3(x-4)-4x(x-4)= (x-4)(x^3-4x)= x(x-4)(x^2-4)= x(x-4)(x-2)(x+2)