Answer:
1. X^2+1/2x = 
2. X^2+2x-3 = 
3. (2x-3)^2 = (2x-3)(2x-3)
4. X^3+2x^2-19x-20 = 
Step-by-step explanation:
Each expression can be written as a product of linear factors as follows
1. X^2+1/2x ⇒ 
= 
Hence, X^2+1/2x = 
2. X^2+2x-3 ⇒ 



Hence, X^2+2x-3 = 
3. (2x-3)^2 ⇒

Hence, (2x-3)^2 = (2x-3)(2x-3)
4. X^3+2x^2-19x-20 ⇒ 

First,

∴ 
Hence, X^3+2x^2-19x-20 = 
Answer: 72
Step-by-step explanation:
From the question, we are informed that a disc jockey can play 7 records and that there are 9 records to select from for a particular segment of a radio show.
The number of ways that the program for the segment be arranged will be:
= 9! / 7!
= (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1) / (7 × 6 × 5 × 4 × 3 × 2 × 1)
= 9 × 8
= 72
Answer:
about 198 miles
Step-by-step explanation:
183.38
- 18.95
_______
164.45 divided by .87 is 198.0229885057
I'm pretty sure that would be 10 13/50 after reducing.