I thought P₃(X) was spanned by (1, x, x²) and lost 16 points for that alone on a midterm I deadass got a 68 because of it lmao

And on another exam I forgot what the direct product meant so I just did AB instead of AxB I got some of the hader questions right just to get this wrong at least it was only worth 7 points but dear god what am I doing