1. Perfect square trinomials, are 2nd degree polynomials, of the form

so that

, which can be written as perfect squares.
2. For example

3. Thus

are perfect square trinomials.
4.

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.
6. b∈{-20, 20}
Answer:
Step-by-step explanation:
what question?
Answer:
Step-by-step explanation:
<u>Ball dropped and we start count from that moment:</u>
- 160 ft down
- 80 ft up and down
- 40 ft up and down
- 20 ft up and down, end
<u>Total distance:</u>
- 160 + 80*2 + 40*2 + 20*2 = 440 ft
Answer:
B
Step-by-step explanation:
Solve the inequality using inverse operations to isolate x.
13x > -5 Divide by 13 on both sides
13x/13 > -5/13
x > -5/13
Answer:
17
Step-by-step explanation: