The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below: step 1: 8 + 12x step 2: 4(2) + 4x(2) step 3: 4(4 + 8x) step 4: dimensions of the rectangle are 4 and 4 + 8x in which step did the student first make an error and what is the correct step? step 2: 4(2) + 4x(2) step 2: 4(2) + 4(3x) step 3: 4 + (4 + 8x) step 3: 4+ (48x)