Question

Me ajudem por favor ??

Answer 1

A) 4^x = 256

4^x = 4^^4

x = 4

B) 16^x = 64

4^2x = 4^3

2x = 3

x = 3 /2

C)8^x = 1/4

2^3x =  1 / 2^2

2^3x = 2^-2

3x = -2

x = -2 / 3

D)9^x = 1/ 27

3^2x = 1 / 3^3

3^2x = 3^-3

2x = -3

x = -3 / 2

E) 9^x-2 = 3

3^2x-4 = 3^1

2x - 4 = 1

2x = 5

x = 5 / 2

F) 5^2x+3 = 1/ 625

5^2x+3 = 1/ 5^4

2x+3 = 4

2x = 1

x = 1/2

G) 8^x-1 = ∛4

2^3x-3 = 4^1/3

2^3x-3 = 2^2/3

3x-3 = 2/3

3x = 2/3 + 3

3x = 11/3

x = 11/9

H)4^x = ∛128

2^2x = 2^7/3

2x = 7/3

x = 7/6

I)√3^x+2 =  27

3^x+2/2 = 3^3

x+2 / 2 = 3

x + 2 = 6

x = 4

J) 16^x = 64

4^2x = 4^3

2x = 3

x = 3/2