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descompune in factori

Descompune In Factori class=

Răspuns :

5x^2-10x+5=
5(x^2-2x+1)=
5(x-1)^2

a^2+2a+1-b^2=
(a+1)^2-b^2


5x²-10x+5 = 5(x²-2x+1) = 5(x-1)²

a²+2a+1-b² = (a+1)² - b² = (a+1-b) (a+1+b)