Question

Solve y = x^2 + 2 solve for x

Answer 1

Solve y = x^2 + 2 for x:

1) Isolate x^2: x^2 = y - 2

2) Find the square root of this result: x = plus or minus √(y-2) (answer)

Answer 2

`y = x^2 + 2`

To solve for x we need to get x alone

`y = x^2 + 2`

To get x alone, we need to remove +2

subtract 2 on both sides

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

`y-2 = x^2`

Take square root on both sides

`+-√(y-2) = x`

We got x alone

`x = +-√(y-2)`