- #1

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## Homework Statement

Find an expression for a cubic function f if f(1)=6 and f(-1)=f(0)=f(2)=0

## Homework Equations

I figured it out but im not sure why we use the equation f(x) = a[x-(-1)](x-0)(x-2)

## The Attempt at a Solution

Im assuming its because if u times that equation that is a cubic function, but does it have anything todo with f(-1)=f(0)=f(2)=0 ?