Question

How do you use zeros to write quadratic functions in standard form x=2 or x=-1?

Answer 1

`color(green)(x^2-x-2=0`

Explanation:

If the zeros of a quadratic are at `x=color(red)(2)` and `x=color(blue)(""(-1))`
then
`color(white)("XXX")(x-color(red)(2))*(x-color(blue)(""(-1)))=0`

`rArr x^2-x-2=0color(white)("XXX")`which is in standard form