Thursday October 17th Aim: How can we be best prepared for

tomorrow’s unit 2 exam on factoring

polynomials?

The homework pack will be collected tomorrow. Make sure the following is completed:

1st page: 1- 10

2nd page: 4 - 8, 24, 25

3rd page: 3-7, 12, 17 - 19

Do Now: Factor each polynomial completely.

1) 2b² + 16b + 14

2) 3x³ + 6x² Unit 2 Exam

TOMORROW!

Steps1) Find GCF. Divide each term by GCF.

2) DOTS or Trinomial or neither?

3) Double Bubble 3) BIG X 3) You’re done!

4) Double Bubble

2b² + 16b + 14

GCF?

GCF: 2

2(b² + 8b + 7)

DOTS or Trinomial or neither?

Trinomial

BIG X

Double bubble! (b ) (b )

7

8

1 7

+ 1 + 7

3x³ + 6x²

GCF?

GCF: 3x²

3x² ( x + 2)

DOTS or Trinomial or neither?

Neither!

x and 2 are not Difference of Two Squares (DOTS) and they are two terms not three, so…

…we’re done! 3x² ( x + 2)

One example together, one example on your own

Together On your own

3x² - 6x - 9 3x² + 15x - 42

One example together, one example on your own

Together On your own

49 - x² x² - 9y²

One example together, one example on your own

Together On your own

x² + 8x + 7 x² + 6x - 16

One example together, one example on your own

Together On your own

2a² - 6a + 8 9x³ - 36x² + 18x

One example together, one example on your own

If (2x – 3y) is one factor of 4x2 – 9y², what is the other factor?

If (2y – x) is one factor of 4y2 – x², what is the other factor?

Mad Minutes! See how many you can correctly complete before the end of the period!

1) 36x² - 100y²

2) 9x² - 3x

3) x³ - 36x

4) x² + x – 20

5) 56x⁴y³ - 42x²y⁶

6) x² - 5x + 6

Any other questions or concerns?

Your test is on: Factoring a GCF (don’t forget to divide to get

the “left over’s”) Factoring a trinomial into two binomials

(“double bubble”-think product & sum-Big X) Factoring a DOTS into two binomials

(“double bubble”- think perfect square) Factoring completely