What is the amount of different ways that you can arrange a deck of 52 cards?

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225