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D o Now:

D o Now:. Put your homework in the basket. What is the area of a rectangle? A triangle? Find the area of the rectangle whose length is (x + 3) and whose width is (2x + 5). Homework . Factoring Word Problems #1.

colin-rhodes
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D o Now:

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  1. Do Now: • Put your homework in the basket. • What is the area of a rectangle? A triangle? • Find the area of the rectangle whose length is (x + 3) and whose width is (2x + 5).

  2. Homework 

  3. Factoring Word Problems #1 The area of a rectangular door is given by the trinomial x2 – 14x + 45. The door’s width is (x – 9). What is the door’s length? (x – 5)

  4. Factoring Word Problems #2 The area of a rectangular painting is given by the trinomial a2 – 6a – 16. The painting’s length is (a + 2). What is the perimeter of the painting? 4x - 12

  5. Factoring Word Problems #3 The area of a rectangular computer screen is 4x2+ 20x +16. The width of the screen is 2x + 8. What is the length of the screen? 2x + 2

  6. Factoring Word Problems #4 The area of a rectangular granite countertop is 12x2 + 10x – 12. The width of the countertop is 2x + 3. What is the length of the countertop? 6x - 4

  7. Factoring Word Problems #5 3x 6 Find the missing side if the area is 6x2 + 33x + 42. • 2x + 7

  8. Factoring Word Problems #6 • When 2r2 + 33r – 54 and r2 + 18r are factored, a common factor is what? • (r + 18)

  9. Factoring Word Problems #7 • If x + 3 is a factor of x2 – 4x – w , then what is the value of w? • x – 7 , w = 21

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