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3*2^(x+2)-5*2^(x+1)-2^x=2
vrg clasa a 5 a​


32x252x12x2 Vrg Clasa A 5 A class=

Răspuns :

Răspuns:

3*2^(x+2)-5*2^(x+1)-2^x=2

2ˣ*(3*2²-5*2-1)=2

2ˣ*(3*4-10-1)=2

2ˣ*1=2

2ˣ=2¹

x=1