(4+5i)(4-5i)=(4)²-(5i)²=16-25(i)²=16-25(-1)=16+25=41
228 - 48 = 180
180/48 = 3.75
Its increase 375%
313.75 I believe that is the correct answer or som
Answer: 65,780
Step-by-step explanation:
When we select r things from n things , we use combinations and the number of ways to select r things = 
Given : The total number of playing cards in a deck = 52
The number of different five-card hands possible from a deck = 2,598,960
In a deck , there are 26 black cards and 26 red cards.
The number of ways to select 5 cards from 26 cards = 

Hence, the number of different five-card hands possible from a deck of 52 playing cards such that all are black cards = 65,780