Multiplying It Out

I’m currently in rerun mode, just replaying some posts from the past. Here’s a previous puzzle from an old “Scam School” episode. You may get it right away (it’s simple), or if you don’t, you’ll facepalm yourself when you see the answer (below).

Here goes:

You are to multiply together a long sequence as follows:

(a-x) X (b-x) X (c-x) X (d-x)...... (y-x) X (z-x)  i.e., utilizing ALL the letters of the alphabet once.

What will be the end product of this sequence when multiplied out???

.Answer below

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Answer = 0 ...just before the final two sequence entries listed, would be (x-x)