Question

25^x = 125^(x+3)

a. x = -10
b. x = -9
c. x = -3
d. x = 3

Answer 1

Answer:

25^x = 125^(x+3)

5^2x=5^3(x+3)

we get

2x=3(x+3)

2x=3x+9

-9=3x-2x

x=-9

option

b. x = -9 is right answer.