Here are the points of everyone in your class. Why are they lined up so neatly?
Anyone need help!?

i can try and you the very best that i can.

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.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8