Question

suma a doua numere este 68 aflati produsul acestor numere daca diferenta lor este 44

Answer 1

[tex] \left \{ {{a+b=68} \atop {a-b=44}} \right. \\ --------\\ 2a=112=\ \textgreater \ a=112:2=\ \textgreater \ a=56\\ a+b=68\ \textless \ =\ \textgreater \ 56+b=68=\ \textgreater \ b=68-56=\ \textgreater \ b=12\\ a*b\ \textless \ =\ \textgreater \ 56*12=672\\\\ Proba:56+12=68\\ 68=68\\\\ 56-12=44\\ 44=44[/tex]

Answer 2

a+b=68
a-b=44
axb=:

a=b+4
b+b+44=68
2b+44=68
2b=68-44=24
b=24:2=12
a=66-12=54

axb=12x54=648