I’ll been stuck on this for to long

The distribution is very simple. Using FOIL.

It states that .

Also note that when multiplying expressions we multiply variables and values differently. If we have variables like their exponents will add. If we have values like 3 we multiply them normally.

For example your practise 3.

Now just order the expressions from bigger exponent to smaller and than values. (Usual notation although no need).

And solution is:

Hope this helps.

r3t40

See below

Step-by-step explanation:

3) Practice: Organizing information

4. Practice: Summarizing

step-by-step explanation: