A created an overly complicated worksheet thaI can no longer open.  It's about 17 Mb, has several interactive plots and equations in it.  Is there a way to force Maple to open a worksheet without executing it?

(Lesson learned:  split this up into separate worksheets next time.)

OK, what am I doing wrong here?

This polynomial can be factored by almost anyone who knows algebra:

factor(x^2+y^2+2*xy);

but Maple refuses:

 x²  + y²  + 2 xy

but if I pose the question this way:

ans := expand((x+y)^2);

factor(ans);

(x + y)²

I get the expected result.  What is wrong with how I am using the factor?