Question

Equação exponencial!

Answer 1

1)

2^(x+1)=2^(10)

x+1=10 ==>x=9

2)

5^(3x-5) =5^4

3x-5=4

3x=9 ==>x=3

3)

81^(x) =3^5

3^(4x)=5

x=5/4

4)

4^(2x²-4x) =4^0

2x²-4x=0

2x*(x-2)=0

2x=0  ==>x=0

x-2=0 ==.x=2

5)

100^x=0,001

10^(2x)=10^(-3)

2x=-3

x=-3/2