Question: How to not execute part of the calculation for the display

In the context of homework, there are some calculations that I do through Maple, and others that I do mostly by hand, and just show my work with Maple's engine that is great at rendering special mathematical formats (like matrices, for example).

I would like to show something like that:


It's pretty easy to make the matrices, right now my line looks like this:


But I would like to refrain for executing the "+" operator and the multiplication by x6 and x7, to have the output like in the first picture. If I disable all execution and take the statement as plain text, then obviously I will not get the correctly rendered matrices.

Is there a way, like an escape character, to prevent specific operations from being executed in one line in particular?

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