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Thursday October 17 th

Thursday October 17 th. 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 : 1 st page: 1- 10 2 nd page: 4 - 8, 24, 25 3 rd page: 3-7, 12, 17 - 19

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Thursday October 17 th

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  1. 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. • 2b² + 16b + 14 • 3x³ + 6x² Unit 2 Exam TOMORROW!

  2. Steps 1) 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

  3. 2b² + 16b + 14 GCF? GCF: 2 2(b² + 8b + 7) DOTS or Trinomial or neither? Trinomial BIG X Double bubble! (b ) (b ) 7 1 7 8 + 1 + 7

  4. 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)

  5. One example together, one example on your own 3x² - 6x - 9 3x² + 15x - 42 Together On your own

  6. One example together, one example on your own 49 - x² x² - 9y² Together On your own

  7. One example together, one example on your own x² + 8x + 7 x² + 6x - 16 Together On your own

  8. One example together, one example on your own 2a² - 6a + 8 9x³ - 36x² + 18x Together On your own

  9. 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?

  10. Mad Minutes! See how many you can correctly complete before the end of the period! • 36x² - 100y² • 9x² - 3x • x³ - 36x • x² + x – 20 • 56x⁴y³ - 42x²y⁶ • x² - 5x + 6

  11. 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

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