Show that v = (v + v0)/2 (see eq. 2-12d) is not valid when the acceleration a = a + bt, where a and b are constants

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.