9.4E: Matrices and Matrix Operations (Exercises) Last updated Feb 8, 2022 Save as PDF 9.4: Matrices and Matrix Operations 9.5: Solving Systems with Inverses Page ID96330 OpenStaxOpenStax ( \newcommand{\kernel}{\mathrm{null}\,}\) For the following exercises, perform the requested operations on the given matrices. A=[4−213],B=[67−311−24],C=[6711−2140],D=[1−49105−7285],E=[7−1432−13019] 39. −4A 40. 10D−6E 41.B+C 42. AB 43. BA 44. BC 45. CB 46. DE 47. ED 48. EC 49. CE 50. A3