How do you solve 125^(2x+1)/625^(x+2)=3125^(x+2)?

1 Answer
Sep 19, 2016

x=-5

Explanation:

(125^(2x+1))/(625^(x+2))=3125^(x+2)

or ((5^3)^(2x+1))/((5^4)^(x+2))=(5^5)^(x+2)

or (5^(3xx(2x+1)))/(5^(4xx(x+2)))=5^(5xx(x+2)^

or (5^(6x+3))/(5^(4x+8))=5^(5x+10)

or 5^(6x+3-4x-8)=5^(5x+10)

or 5^(2x-5)=5^(5x+10)

or 2x-5=5x+10

or 2x-5x=10+5

or -3x=15

or x=15/-3=-5