# Let ?(x)=2x2+3x+1.Find a value of ? between 1 and 5 such that the average rate of change of ?(x) from x=1 to x=5 is equal to the instantaneous rate of ?(x) at x=?.?=

Question

Let ?(x)=2x2+3x+1.
Find a value of ? between 1 and 5 such that the average rate of change of ?(x) from x=1 to x=5 is equal to the instantaneous rate of ?(x) at x=?.

?=