Question

Y= x^2 -5 solve for x

Answer 1

`Y= x^2 -5`

We need to solve for x, we need to get x alone

`Y= x^2 -5`

Lets start by removing -5

Add 5 on both sides

`y + 5= x^2 -5 + 5`

`y + 5= x^2`

Now to isolate x , we need to remove the square from x

To remove square , take square root on both sides

`+-√(y+5) = √(x^2)`

square and square root will get cancelled

`+-√(y+5) = x`

So
`x = +√(y+5)` and
`x = -√(y+5)`