Question

How do you solve `2\sqrt { x - 1} = \sqrt { x + 5}`?

Answer 1

x=3

Explanation:

`2sqrt(x-1)=sqrt(x+5) // ^2 ("everything sqared)"`

`4x-4=x+5 //-x, +4`

`"(moving the x to one side, and numbers to the other)"`

`3x=9 //:3`

`x=3`