Question

How do you write `y = (x − 1)^2 − 1` in standard form?

Answer 1

`y = x^2-2x`

Explanation:

`y = (x-1)^2 - 1`

`= (x-1)(x-1) - 1`

`= x^2-2x+1-1`

`= x^2-2x`

Standard form places the terms in descending powers of `x`