Wiki Page, ALGEBRA II-A (EXT SERIES) Fall 2025 Ryan & Malan: 10/7: Review of Factoring Quadratics - Complete For Homework After Quiz!

Wiki Page
2025-10-07T09:09:56-07:00

Why do we want to factor quadratic expressions???

Like x² + 3x - 4 or x² - 16 or 5x² - 50x + 100 or . . . . .

- It makes factorable quadratic equations easier to graph

- It allows us to find the root(s)* of quadratic functions

- It is a skill that can be helpful in higher levels of math

- As with most skills, the more we practice, the better we get at it

- It strengthens mathematical literacy

There are some patterns that come up frequently, more practice with these help develop skills for more complex factoring.

There's a video below that's a great start for practicing factoring, but first get some paper to write on or perhaps take notes. Read through the activity completely. When you get to the link, then start:

You will want to pause the video at time 6:05, right after he says, "x² + 15x +50" and practice on these two examples: a) x² +3x + 2 b) x² +10x +21

Then pause the video at time 9:05, right after he says, "Let's do another one like that," and try these two:

a) x2 - 6x +5 b) x² -13x +36

Continue video until time 11:05, pause and try these: a) x2 + 3x - 18 b) x² +x - 42

At time 12:40, pause to do these: a) x² -12x - 28 b) x² - 5x - 6

And at the end of the video do these: a) -x² - 5x - 24 b) - x² + 9x +36

Okay, now that you've read through it all, tap the link and start, pausing the video at the appropriate times, and doing all the problems as they come up.

Link

Now, take a breath before before continuing. :-)

*another term meaning to solve

*** Complete the back of the worksheet for homework tonight from yesterday (Multiplying Binomials)***

Additional Practice Problems (Optional)

But wait, there's more!!!!!

Here is some factoring practice for you! Factoring Practice 1.pdf