Just started doing maths again last week, stuck on factorising problem
Factorise x² + 2x + 1 - y²
After trying this for ages, I looked at the answer and its
(x + 1 - y)(x + 1 + y)
but I still can't get to that point by myself, can anyone help please
Thanks
After trying this for ages, I looked at the answer and its
(x + 1 - y)(x + 1 + y)
but I still can't get to that point by myself, can anyone help please
Thanks
Two facts that you need to learn:
If you know these, you can use them very easily to solve your problem:
Can you now apply the second of the two facts to finish the job?