Reply To: Week 6 Video Lessons

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#31615
Fabio Zanatta
Participant

Hello,

I have a doubt on video lesson 24 (general squaring).

Into the video I can see this calculus: (2x+3y+5)^2=4x^2+12xy+9y^2+20x+30y+25.

I think it is correct, but I noticed that in the video a + sign is missing between 20x and 30y.

 

Thanks

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