Question

Daca a +b=1,6 atunci a²+2ab+ b²

Answer 1

 a +b=1,6 atunci a²+2ab+ b² =1,6²=2,56
deoarece a²+2ab+ b² =(a+b)²

Answer 2

$a^{2}+2ab+ b^{2} =(a+b)^{2} =1,6^{2} =2,56$