When using the three cell bold phrase indicator on a section of an expression (but not the whole expression) to show distinction, how should spacing before and after the indicator be handled next to operators and grouping symbols?
The use of boldface in this example is for visual connection between math items. To use boldface indicators in the transcription is messy. I would not use them here. The student can be informed in a TN, formatted as commentary. See the attached brf file for suggested treatment.