Question

$(x+y-1)la puterea 5018,daca x=1+a si y=1-a$

Answer 1

   
[tex]x=1+a \\ y=1-a \\ (x+y-1)^{5018} = (1+a+1-a-1)^{5018}= \\ =(1+1-1+a-a)^{5018}= 1^{5018}=\boxed{1}[/tex]