Posted by **Katy** on Monday, March 9, 2009 at 3:26pm.

Determine whether each trinomial is a perfect square trinomial.

x^2-16x+64

- algebra 1 -
**Reiny**, Monday, March 9, 2009 at 4:37pm
the first and last terms sure are perfect squares, right?

so, if it works, it would have to be (x-8)^2

If you expand this, do you get your original expression ?

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