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Am nevoie de 8..multumesc

Am Nevoie De 8multumesc class=

Răspuns :

[tex]4^x= \frac{2^x+3*2^x}{2} \\ 2*4^x=2^x+3*2^x \\ 2*4^x=4*2^x \\ 2^{1+2x}= 2^{2+x} \\ \\ 1+2x=2+x \\ x=1[/tex]