alves1250 24/04/2022 3^(x-1)-3^(x+1)=-83^(x) * 3⁻¹ -3^(x) * 3 =-83^(x) * [1/3 -3]=-83^(x) * [-8/3] =-83^(x)=(-3/8) *(-8)3^(x)=33^(x)=3¹x=1
alves1250
3^(x-1)-3^(x+1)=-8
3^(x) * 3⁻¹ -3^(x) * 3 =-8
3^(x) * [1/3 -3]=-8
3^(x) * [-8/3] =-8
3^(x)=(-3/8) *(-8)
3^(x)=3
3^(x)=3¹
x=1