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A comment on A visual proof that a^2 – b^2 = (a + b)(a – b). Parent comment

Re:A visual proof that a^2 – b^2 = (a + b)(a – b) by saghm on Monday December 16, 2024 @02:20PM (#42434330)
He was pretty great! He was super smart, super passionate, and had a great sense of humor; everything I could have asked for in a teacher.
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