Question

If 5 ^ a = y then 25 ^ a = ?

Answer 1

If 5^a = y, then we can rewrite 25 as 5^2. Therefore, we have:

25^a = (5^2)^a

= 5^(2a)

Now, we can substitute y for 5^a to get:

25^a = 5^(2a)

= (5^a)^2

= y^2

Therefore, 25^a is equal to y^2.