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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.

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d o now
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).
factoring word problems 1
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)

factoring word problems 2
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

factoring word problems 3
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

factoring word problems 4
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

factoring word problems 5
Factoring Word Problems #5

3x

6

Find the missing side if the area is 6x2 + 33x + 42.

  • 2x + 7
factoring word problems 6
Factoring Word Problems #6
  • When 2r2 + 33r – 54 and r2 + 18r are factored, a common factor is what?
  • (r + 18)
factoring word problems 7
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