Răspuns :
2^(x+1) +2^(x-3) = 2^(x-4) +33
2^(x+1) +2^(x-3)- 2^(x-4)=33
2^(x-4) ×(2^5+2^1-2^0)=33
2^(x-4) × (32+2-1)=33
2^(x-4) × 33=33
2^(x-4)=1
=》 x-4=0
x=4
2^x*2+2^x*2^-3-2^x*2^-4=33
2^x(2+2^-3-2^-4)=33
2^x[2+1/(2^3)-1/(2^4)]=33
2^x[(32+2-1)/(2^4)]=33
2^x(33/32)=33
2^x=(33*32)/33
2^x=32
2^x=2^4
X=4
2^x(2+2^-3-2^-4)=33
2^x[2+1/(2^3)-1/(2^4)]=33
2^x[(32+2-1)/(2^4)]=33
2^x(33/32)=33
2^x=(33*32)/33
2^x=32
2^x=2^4
X=4