SOLUTION: How do we square trinomials?

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Question 100511: How do we square trinomials?
Answer by timmy1729(23) About Me  (Show Source):
You can put this solution on YOUR website!
You have to use the distributive property for every term on the whole trinomial. It's messy, but you have to do it.
For example: %28x+%2B+y+%2B+z%29%5E2

In reality, this is what you are doing when you square a binomial. This works for any polynomial.