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Vă rog mult dau 35 de puncte

Vă Rog Mult Dau 35 De Puncte class=

Răspuns :

1) 

[tex]9+30z^2+25z^4 = (3+5z^2)^2[/tex]

5)

[tex]4^n-2^{2n+1}+1=(2^2)^n - 2^n\cdot2 +1= (2^n)^2 -2\cdot2^n+1 = (2^n-1)^2[/tex]



[tex] 9+30^2+25z^4=(3+5z^2)^2 [/tex]

[tex] 4^n-2^{2n+1}+1=(2^2)^n-2^n/cdot 2+1=(2^n)^2-2[tex] 9+30z^2+25z^4=(3+5z^3)^2[/tex]
sler ca te-am ajutat!!!