Question

Is my answer right?

Solve. 1/25 = 5^x + 4

x = 9/2

Answer 1

@kelly226 please:))))))))

Answer 2

actually..
we can re-write 1/25 as a power of 2 like this:
1/25 = (25)^(-1) = (5^2)^(-1) = 5^(-1 * 2) = 5^(-2).

So, we have:
5^(-2) = 5^(x + 4).

and Since the bases are the same, we can compare the exponents to get:
-2 = x + 4 ==> x = -6.

so, the answer is actually X = -6 :) make sense?

Answer 3

Wait, how did you get (-1)??

Answer 4

those were just examples of how u can re write 1/25..

Answer 5

ohhhh thank you!!!!!!!!!!!!!!!!!!:)))))))))))))))))))))))

Answer 6

u can just ignore those if u want.. they dont really have anything to do with the problem.. i was just showing u:)

Answer 7

yw!:)