Sara is completing the square to find the maximum or minimum value of the function f(x) = (2 - x) (5 + x). What is the first step that Sara must take? Does the function have a maximum or minimum value? What is that value? A) multiply the binomials; maximum value; 49 4 B) multiply the binomials; minimum value; 49 4 C) set each factor equal to zero and solve for x; minimum value; −2 5 D) set each factor equal to zero and solve for x; maximum value; −7 2