The answer is :
c. (x+1)²=20
To check:
(x+1)²=20 (a+b)²=a²+2ab+b²
x²+2x+1=20
x²+2x=20-1
x²+2x=19
Answer:
air is nice
Step-by-step explanation:
heheh
Arithmetic sequences have a common difference (addition)
geometric sequences have a common ratio (multiplication)
Answer:
700
Step-by-step explanation:
100:2
???:14
14*100
=1400
1400/2
=700
