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Simplificati: x^3-25x
x^3-2x^2-x+2


Răspuns :

Simplificati:

x³-25x=x(x²-25)=x(x+5)(x-5)

x³-2x²-x+2=x²(x-2)-(x-2)=

(x-2)(x²-1)=(x-2)(x+1)(x-1)

[tex].[/tex]

x^3 - 25x = x ( x^2 - 25) = x (x -5)(x+5)

x^3-2x^2-x+2 = x^2(x-2) - (x-2) = (x-2)(x^2-1)