Alsina, C.Monreal, A.2024-09-042024-09-042003-06-01Teaching Mathematics and Computer Science, Vol. 1 No. 1 (2003) , 1571589-7389https://hdl.handle.net/2437/379501(a+b)^2…application/pdfproof without wordsfolyóiratcikkOpen AccessC. Alsina and A. Monrealhttps://doi.org/10.5485/TMCS.2003.0004Teaching Mathematics and Computer Science11Teach. Math. Comp. Sci.2676-8364