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

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.