A teacher is going to develop the concept of squaring a binomial expression

[eddy2017]

I understand BBB's post at #13 as an approval of that choice.

 

[eddy2017]

Why can't choice D check out?.

 

[BigBeachBanana]

Why can't choice D check out?.

Write D in the form of a mathematical expression. Is it equivalent to [imath]a^2+b^2+2ab?[/imath]

 

[lookagain]

Hey, lookagain, re-reading the posts I see you disagree with choice C. Why?.

No, the diagram for choice C is faulty (not drawn to scale). I like the written portion of choice C.