The length of a rectangle is 6 cm more than its width. the area of the rectangle is 256 cm, superscript,2,baseline,. let x represent the width of the rectangle in centimeters. which equation represents the situation? answer options with 4 options a . 6x, superscript,2,baseline, − 256 = 0 b . 6x, superscript,2,baseline, + 256 = 0 c. x ,superscript,2,baseline, − 6x + 256 = 0 d. x ,superscript,2,baseline, + 6x − 256 = 0