Part a: factor 3x2y2 − 2xy2 − 8y2. show your work. (4 points) part b: factor x2 + 10x + 25. show your work. (3 points) part c: factor x2 − 36. show your work. (3 points) (10 points)

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth