Grandfather:
Reply=>
Why do you look like a little wife all the time these days? Where did my handsome, dashing, and debonair school hunk boyfriend go?
Are you not going to give me back my Qi Yi quickly?
Speaking of which, you resort to reverse psychology and beating around the bush, but is it really fun to force someone to say those few words?
Since you only say "like" and not "love," why did you give me a love equation when you left?
17·x^2-16|x|y+17y^2=225, I've solved it already.
This heart you gave me looks nothing like Descartes's butt-shaped heart; it's a very standard heart shape. (note 1)
When I first started solving the equation, I used a blue ink pen to draw it on the coordinate axis.
After solving it, I took a new sheet of paper and drew it with a red pen, filling in the middle of the curve with red paint.
I took a photo, a "bright red heart" full of positive energy is waiting for you in the attachment.
