How many words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter exactly once?

Explanation

To find the number of words that can be formed using all the letters of the word "EQUATION", we will follow these steps:

### Step 1: Identify the number of letters in the word
The word "EQUATION" consists of 8 letters: E, Q, U, A, T, I, O, N.

### Step 2: Check for repeating letters
In the word "EQUATION", each letter is unique. Therefore, we have:
- E: 1
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