5 . The integral of f(x)= x' - 2x between x = -1 and x = 1 is equal to O. Consider the given graph and explain why this is so. (5 pts) Use the graph at right to help you write an integral(s) to find the total area enclosed by f(x)=x2-4x and g(x)=-x2 +2x, then evaluate it. Round your answer to two decimal places if needed. 6 pts) You'll need to find the limits of integration first