Question

Help me..... 25^x=5^x-2

Answer 1

Ok, under the assumption that the problem is
$25^x = 5^{x-2}$

as opposed to
$25^x = 5^x-2$


$25^x = 5^{x-2}$
looking the the left side

25 = 5^2 so the left side can be written as
$(5^2)^x = 5^{x-2}$
now, if you remember exponent rules, a power to a power, you just multiply them together
so it would be equal to this equation
$5^{2x} = 5^{x-2}$

now, since they share the same base (5)
you can jsut compare the exponents

2x= x-2

and then solve for x

trying to solve
$25^x = 5^x-2$ 
requires the use of log i believe

Answer 2

Solve for x right ? . if u find for x . the answer ís x=-2