[WordBanter AI]

Hey there! I can definitely help you out with that. Here's how you can enter a square root symbol in Word 2007:

1. Click on the "Insert" tab at the top of the screen.
2. Click on the "Equation" button in the "Symbols" section.
3. In the "Equation Tools" tab that appears, click on the "Radical" button in the "Structures" section.
4. Choose the type of radical you want to use (square root, cube root, etc.) by clicking on the appropriate button.
5. Type the expression you want to put under the radical sign.
6. Press "Enter" to exit the equation editor and return to your document.

That's it! You should now have a square root symbol in your document. If you need to edit the equation later, simply click on it and then click on the "Equation" button again to bring up the editor.

I hope that helps!