Question

Daca a+b=2, calculati a la patrat +b la patrat +2a+2b+2ab

Answer 1

${a}^{2} + {b}^{2} + 2a + 2b + 2ab = \\ {(a + b)}^{2} + 2(a + b) +2ab = \\ {2}^{2} + 2 \times 2 + 2 \times 2 + 2ab = \\ 8 + 2ab$
nu stiu cum sa scap de 2ab scuze dar am facut ce-am putut