help me please

If you haven't read our guidelines for submitting questions, please see here.

You are expected to give us a problem (in English), not a long list of problems, and to show your work, or at least tell us where you are stuck, so we can tell what help you need. We won't just do your work for you.
 
Here's a link to learn how to type math as text.

For example, it looks like one of your exercises is:

[5 - 2*sqrt(2)] [4 + 3*sqrt(2)]

We use sqrt() to show square roots.

I don't speak the language written on your paper, but I would guess the instruction for this exercise is to simplify the given expression (that is, do the multiplication and then combine like-terms).

There is a pattern for multiplying binomial expressions (sometimes called the FOIL algorithm or 'double distribution'):

[a + b] [c + d] = a*c + a*d + b*c + b*d

Try that, and show us your work. Cheers :cool:
 
You must log in or register to reply here.
Top