4.5 Trinomials
Practice
1.
!
+ 10a + 24
2. ℎ
!
+ 12h + 27
3.
!
+ w – 56
4. 2
!
+ 10b + 12
5. 3
!
+ 8g + 4
6. 4
!
+ 4x – 3
!
!
!
!
7. 8
– 5b – 10
8.
– 6x – 55
9.
– mv – 56
!
!
!
10. 8
– 18w + 9
11. 10
– 9x + 6
12. 48 – 16g +
Solve:
13.
!
+ 17x + 42 = 0
14.
!
+ 4n = 32
15. 15
!
– n = 2
16. Janeel has a 10-inch by 12-inch photograph. She wants to scan the photograph,
then reduce the result by the same amount in each dimension to post on her Web
site. Janeel wants the area of the image to be one eighth that of the original
photograph.
a. Write an equation to represent the area of the reduced image.
b. Find the dimensions of the reduced image.