Question

(2+3) la patrat cum se calculeaza

Answer 1

2 la patrat + 2x2x3 + 3 la patrat 
formula (a+b) la patrat = a la patrat+ 2 ab + b la patrat 

Answer 2

$(2+3)^{2}=\\(2+3)(2+3)=\\2*2+2*3+3*2+3*3=\\2^{2}+2*3*2+3^{2}$