SOLUTION: Write each square as a trinomial 1. (n+5)^2 The answer is n^2+10n+25 I need help with figuring out how to actually do the problem. Thank you very much

Question 201486: Write each square as a trinomial
1. (n+5)^2
The answer is n^2+10n+25
I need help with figuring out how to actually do the problem.

Thank you very much
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given expression.

Expand. Remember something like .

Now let's FOIL the expression.

Remember, when you FOIL an expression, you follow this procedure:

Multiply the First terms:.

Multiply the Outer terms:.

Multiply the Inner terms:.

Multiply the Last terms:.

---------------------------------------------------
So we have the terms: , , ,

Now add every term listed above to make a single expression.

Now combine like terms.

So FOILs to .

In other words, .

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