1. ## Strange Squaring Directions...

I'm posting this for a friend. The problem says:

To square a number ending with 5, multiply 5 less than the number by 5 more than the number, and then add 25. Write an expression or equation for this situation.

I tried it like 3 times, but if you tested it, it never worked.

This is probably way easier than I think it is...

2. Originally Posted by DarkFlashlight
I tried it like 3 times, but if you tested it, it never worked.
Here are two examples of where it works:

15*15 = 225
(15 - 5) * (15 + 5) + 25 = 10 * 20 + 25 = 225

25*25 = 625
(25 - 5) * (25 + 5) + 25 = 20 * 30 + 25 = 625

3. ## Thank You

Hey man. Thank you so much for givin' me some examples for this problem. It was getting on my nerves. It was probably really easy for you, but it was really confusing for me. So thanks again dude.