Lesson: Factoring Special Cases
Presentation
•
Mathematics
•
9th Grade
•
Medium
+3
Standards-aligned
Christopher Gassler
Used 10+ times
FREE Resource
6 Slides • 9 Questions
1
Multiple Select
Do you have your NOTEBOOK OUT?
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👍, I have my 📕 out.
I KNOW I have to take a picture 📸 of my notes 📝at the end to get full 💯credit.
I DO NOT have a notebook 😖 and understand it means I will get a bad 👎 grade. 😧😞😥
2
Objective: Factor special case quadratics
3
Match
Match the following binomials with their products.
(x + 6)(x - 6)
(x + 6)2
(x - 6)2
(x + 9)(x - 4)
(x - 9)(x + 4)
x2 - 36
x2 + 12x + 36
x2 - 12x + 36
x2 + 5x - 36
x2 - 5x - 36
x2 - 36
x2 + 12x + 36
x2 - 12x + 36
x2 + 5x - 36
x2 - 5x - 36
4
5
12 (means 1×1) = 1
22 (means 2×2) = 4
32 (means 3×3) = 9
42 (means 4×4) = 16
52 (means 5×5) = 25
Perfect Squares: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, ...
6
Questions to Ask
1) Are the 1st and 3rd term perfect squares?
2) If YES, multiply them and double it. Is that the middle term?
7
Math Response
Factor: x2 + 12x + 36
8
Multiple Select
Which of the following polynomials is prime?
x2 - 14x + 49
x2 + 4x + 16
9
Questions to Ask
1) Are the 1st and 3rd term perfect squares?
2) If YES, multiply them and double it. Is that the middle term?
10
Math Response
Factor: 25x2 - 10x + 1
11
12
Math Response
Factor: x2 - 121
13
Math Response
Factor: 49x2 - 81
14
Match
Match the following quadratic with its factored form.
x2 - 81
x2 + 81
x2 - 9
x2 - 6x + 9
(x + 9)(x - 9)
Prime
(x + 3)(x - 3)
(x - 3)(x - 3)
(x + 9)(x - 9)
Prime
(x + 3)(x - 3)
(x - 3)(x - 3)
15
Fill in the Blanks
Take a picture 📷 of the notes 📒 you took for this lesson.
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(if it is not working😕, upload 💻 the picture 📸 to the google classroom assignment)
Type answer...
Do you have your NOTEBOOK OUT?
🙄
👍, I have my 📕 out.
I KNOW I have to take a picture 📸 of my notes 📝at the end to get full 💯credit.
I DO NOT have a notebook 😖 and understand it means I will get a bad 👎 grade. 😧😞😥
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