You can use GP in many ways.
- Suppose you invested some money at somewhere.The money increases in a constant ratio.You can use geometric sequence in order to find your money after some years.
- In science you can use it to find growth of bacteria which is exponential.
Difference of two squares will be
16y^2 -x^2 = (4y -x)(4y +x)
so the second choice
Answer:
45
Step-by-step explanation: