Question

Vă rog mult dau 35 de puncte

Answer 1

1) 

$9+30z^2+25z^4 = (3+5z^2)^2$

5)

$4^n-2^{2n+1}+1=(2^2)^n - 2^n\cdot2 +1= (2^n)^2 -2\cdot2^n+1 = (2^n-1)^2$

Answer 2

$9+30^2+25z^4=(3+5z^2)^2$

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