Question

How do you solve `sqrta-5=0`?

Answer 1

If `sqrt(a) - 5 =0`

then
`sqrt(a) = 5`

and
`a = 25`

Answer 2

`sqrt(a)-5=0`

`sqrt(a)=5`

`a^(1/2)=5`

`(a^(1/2))^2=5^2`

`a=5^2`

`a=25`