Question

-15 -3 3 15 Pls help idk this

Answer 1

Answer:

-3

Step-by-step explanation:

4^x = (1/8)^(x+5)

(2^2)^x =  (2^-3)^(x+5)

2^2x = 2^(-3x - 15)

Since both sides have the same base of 2, then the exponents are equal

So

2x = - 3x - 15

5x = -15

 x = -3

Answer 2

Answer:

-3

Step-by-step explanation:

see attached