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## Homework Statement

Find x intercept of:

x^3-3 x^2+3

## Homework Equations

I can clearly see three x intercepts on the graph but can not determine them mathematically. Quadratic formula and calculator give non real answer. Book says: ( -.879, 0) (1.347,0) (2.5232, 0)

## The Attempt at a Solution

I am totally stuck as the quadratic gives a negative discriminant and a non real answer.... yet there are indeed three intercepts.

What am I doing wrong?

Thanks,

Warren