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Option 1: Just fill in the form with your homework question, and someone will respond shortly with an answer.

Option 2: Take a photo (or link) of your question, and email or text it to us.

### Like us? # Completing the Square

Q: What is completing the square?

A: Completing the square is a technique used to convert from general form, , to standard form, . Why do we need to convert? Standard form is much easier to graph as a parabola.

Let’s look at some examples:

Write each function in the form a) Step 1: Take half of the b term (in this case, b=10) and square it. Step 2: Add that number to the equation, but then subtract it from the end of the equation. Why? So that you are actually just adding 0 to the equation. Step 3: You now have a perfect square (because 5+5=10, and 5*5=25), so group those terms together and factor:    This is a parabola in standard form
with a=1, and the vertex is at (p,q)=(-5,5).

### 2 comments to Completing the Square

• […] We want to maximize A, so we need to graph A vs w, by completing the square. […]

• […] Complete the square here to find: […]