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Ajutati-ma va rogg mult.

Ajutatima Va Rogg Mult class=

Răspuns :

Răspuns:

(x-1)²-(x+1)²/(x+1)(x-1) : -4x/x²+2x+1

-2×2x/(x+1)(x-1) : -4x/x²+2x+1

-4x/(x+1)(x-1) : -4x/x²+2x+1

4x/(x+1)(x-1)×x²+2x+1/4x

4x/(x+1)(x-1)×(x+1)²/4x

x/(x+1)(x-1)×(x+1)²/4x

1/(x+1)(x-1)×(x+1)²

1/x-1×(x+1)

x+1/x-1