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Va rog frumos, urgent: (x+1) la a treia -4x-4=(x-1)(x+1)(x+3) .Dau coroana, va roog muult!!!!

Răspuns :

Renatemambouko
(x+1)³-4x-4=(x+1)³-4(x+1)=(x+1)(x²+2x+1-4)=(x+1)(x²+2x-3)=

=(x+1)(x²-x+3x-3)=(x+1)[x(x-1)+3(x-1)]=(x+1)(x-1)(x+3)=(x-1)(x+1)(x+3)

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