Step 1: Group this into two groups:

When you do that, be sure to group the "–" into the group with the 9 and make sure there's "+" between the groups.
Step 2: Factor out the GCF from both individual groups:

Step 3: Notice both groups have that (h+2)? That's a new GCF between the two groups, so factor that out:

Step 4: That
piece can be factored further, since it's a difference of squares:

Now it's factored.
Answer:
Step-by-step explanation:
The sum of the interior angles of a polygon with n side is

So, for a polygon with 5 sides the expression is

There is no graph in your question. If p is number of reams of paper, and c is number of ink cartridges, then
3p + c = 234, wich p and c natural numbers (including 0)
This means that 13 ink cartridges and 0 paper will satisfy the end amount, but also 0 ink cartridges and 39 paper. There are 14 combinations possible.
Step-by-step explanation:
2k - (3k - 3k) = 2k
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