Question

Fração exponencial
3×+5=3elevado a 5
2elevado a5×=128
4×=√2
1/9×=√3
√4×=1/√2
3×+¹=9
(1/3)×=(1/27)×+¹

Answer 1

3^x+5=3^5
x+5=5
x=5-5
x=0

2^5x=128
2^5x=2^7
5x=7
x=7/5

4^x=√2
2^2x= 2^1/2
2x=1/2
x= 1/2÷2
x=1/2×1/2
x=1/4

1/9^x=√3
1/3²^x=3^½
3-²x= 3^½
-2x=1/2
x=1/2÷(-2)
x=1/2×(-1/2)
x=-1/4

√4^x=1/√2
2^x=2^-½
x=-1/2

3^x+1=9
3^x+1=3²
x+1=2
x=2-1
x=1

(1/3)^x=(1/27)^x+1
(1/3)^x=(1/3³)^x+1
x= 3x+3
x-3x=3
-2x=3
x=-3/2