*Simplify the following expression as far as possible:*

(x - 4)² - 16

(x - 4)² - 16

I don't understand how to solve this one. The answer is

**NOT**x = 20

ANSWER HIDDEN ---> (x²-8x) <--- ANSWER HIDDEN

I have masked the answer in case someone wish to give it a try themselves before trying to help me

I tried the x² + px + q = 0 formula but that became not even near the answer.

Anyone that can describe this problem in a step by step fashion?

**Note:**I

**will**get stuck again, and instead of making a new thread I will reuse this one. With the newest question

**ON TOP**the older questions, marked with date to make it easy to see where the current problem ends.

This post has been edited by **FrozenSnake**: 10 May 2010 - 12:53 PM